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#------------------------------------------------------------------------------
# Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
#
# Portions Copyright 2007-2015, Anthony Tuininga. All rights reserved.
#
# Portions Copyright 2001-2007, Computronix (Canada) Ltd., Edmonton, Alberta,
# Canada. All rights reserved.
#------------------------------------------------------------------------------
"""
1200 - Module for testing cursors
"""
import decimal
import cx_Oracle as oracledb
import test_env
class TestCase(test_env.BaseTestCase):
def test_1200_create_scrollable_cursor(self):
"1200 - test creating a scrollable cursor"
cursor = self.connection.cursor()
self.assertEqual(cursor.scrollable, False)
cursor = self.connection.cursor(True)
self.assertEqual(cursor.scrollable, True)
cursor = self.connection.cursor(scrollable=True)
self.assertEqual(cursor.scrollable, True)
cursor.scrollable = False
self.assertEqual(cursor.scrollable, False)
def test_1201_execute_no_args(self):
"1201 - test executing a statement without any arguments"
result = self.cursor.execute("begin null; end;")
self.assertEqual(result, None)
def test_1202_execute_no_statement_with_args(self):
"1202 - test executing a None statement with bind variables"
self.assertRaises(oracledb.ProgrammingError, self.cursor.execute, None,
x=5)
def test_1203_execute_empty_keyword_args(self):
"1203 - test executing a statement with args and empty keyword args"
simple_var = self.cursor.var(oracledb.NUMBER)
args = [simple_var]
kwargs = {}
result = self.cursor.execute("begin :1 := 25; end;", args, **kwargs)
self.assertEqual(result, None)
self.assertEqual(simple_var.getvalue(), 25)
def test_1204_execute_keyword_args(self):
"1204 - test executing a statement with keyword arguments"
simple_var = self.cursor.var(oracledb.NUMBER)
result = self.cursor.execute("begin :value := 5; end;",
value=simple_var)
self.assertEqual(result, None)
self.assertEqual(simple_var.getvalue(), 5)
def test_1205_execute_dictionary_arg(self):
"1205 - test executing a statement with a dictionary argument"
simple_var = self.cursor.var(oracledb.NUMBER)
dict_arg = dict(value=simple_var)
result = self.cursor.execute("begin :value := 10; end;", dict_arg)
self.assertEqual(result, None)
self.assertEqual(simple_var.getvalue(), 10)
def test_1206_execute_multiple_arg_types(self):
"1206 - test executing a statement with both a dict and keyword args"
simple_var = self.cursor.var(oracledb.NUMBER)
dict_arg = dict(value=simple_var)
self.assertRaises(oracledb.InterfaceError, self.cursor.execute,
"begin :value := 15; end;", dict_arg,
value=simple_var)
def test_1207_execute_and_modify_array_size(self):
"1207 - test executing a statement and then changing the array size"
self.cursor.execute("select IntCol from TestNumbers")
self.cursor.arraysize = 20
self.assertEqual(len(self.cursor.fetchall()), 10)
def test_1208_callproc(self):
"1208 - test executing a stored procedure"
var = self.cursor.var(oracledb.NUMBER)
results = self.cursor.callproc("proc_Test", ("hi", 5, var))
self.assertEqual(results, ["hi", 10, 2.0])
def test_1209_callproc_all_keywords(self):
"1209 - test executing a stored procedure with all args keyword args"
inout_value = self.cursor.var(oracledb.NUMBER)
inout_value.setvalue(0, 5)
out_value = self.cursor.var(oracledb.NUMBER)
kwargs = dict(a_InOutValue=inout_value, a_InValue="hi",
a_OutValue=out_value)
results = self.cursor.callproc("proc_Test", [], kwargs)
self.assertEqual(results, [])
self.assertEqual(inout_value.getvalue(), 10)
self.assertEqual(out_value.getvalue(), 2.0)
def test_1210_callproc_only_last_keyword(self):
"1210 - test executing a stored procedure with last arg as keyword arg"
out_value = self.cursor.var(oracledb.NUMBER)
kwargs = dict(a_OutValue=out_value)
results = self.cursor.callproc("proc_Test", ("hi", 5), kwargs)
self.assertEqual(results, ["hi", 10])
self.assertEqual(out_value.getvalue(), 2.0)
def test_1211_callproc_repeated_keyword_parameters(self):
"1211 - test executing a stored procedure, repeated keyword arg"
kwargs = dict(a_InValue="hi",
a_OutValue=self.cursor.var(oracledb.NUMBER))
self.assertRaises(oracledb.DatabaseError, self.cursor.callproc,
"proc_Test", ("hi", 5), kwargs)
def test_1212_callproc_no_args(self):
"1212 - test executing a stored procedure without any arguments"
results = self.cursor.callproc("proc_TestNoArgs")
self.assertEqual(results, [])
def test_1213_callfunc(self):
"1213 - test executing a stored function"
results = self.cursor.callfunc("func_Test", oracledb.NUMBER, ("hi", 5))
self.assertEqual(results, 7)
def test_1214_callfunc_no_args(self):
"1214 - test executing a stored function without any arguments"
results = self.cursor.callfunc("func_TestNoArgs", oracledb.NUMBER)
self.assertEqual(results, 712)
def test_1215_callfunc_negative(self):
"1215 - test executing a stored function with wrong parameters"
func_name = "func_Test"
self.assertRaises(TypeError, self.cursor.callfunc, oracledb.NUMBER,
func_name, ("hi", 5))
self.assertRaises(oracledb.DatabaseError, self.cursor.callfunc,
func_name, oracledb.NUMBER, ("hi", 5, 7))
self.assertRaises(TypeError, self.cursor.callfunc, func_name,
oracledb.NUMBER, "hi", 7)
self.assertRaises(oracledb.DatabaseError, self.cursor.callfunc,
func_name, oracledb.NUMBER, [5, "hi"])
self.assertRaises(oracledb.DatabaseError, self.cursor.callfunc,
func_name, oracledb.NUMBER)
self.assertRaises(TypeError, self.cursor.callfunc, func_name,
oracledb.NUMBER, 5)
def test_1216_executemany_by_name(self):
"1216 - test executing a statement multiple times (named args)"
self.cursor.execute("truncate table TestTempTable")
rows = [{"value": n} for n in range(250)]
self.cursor.arraysize = 100
statement = "insert into TestTempTable (IntCol) values (:value)"
self.cursor.executemany(statement, rows)
self.connection.commit()
self.cursor.execute("select count(*) from TestTempTable")
count, = self.cursor.fetchone()
self.assertEqual(count, len(rows))
def test_1217_executemany_by_position(self):
"1217 - test executing a statement multiple times (positional args)"
self.cursor.execute("truncate table TestTempTable")
rows = [[n] for n in range(230)]
self.cursor.arraysize = 100
statement = "insert into TestTempTable (IntCol) values (:1)"
self.cursor.executemany(statement, rows)
self.connection.commit()
self.cursor.execute("select count(*) from TestTempTable")
count, = self.cursor.fetchone()
self.assertEqual(count, len(rows))
def test_1218_executemany_with_prepare(self):
"1218 - test executing a statement multiple times (with prepare)"
self.cursor.execute("truncate table TestTempTable")
rows = [[n] for n in range(225)]
self.cursor.arraysize = 100
statement = "insert into TestTempTable (IntCol) values (:1)"
self.cursor.prepare(statement)
self.cursor.executemany(None, rows)
self.connection.commit()
self.cursor.execute("select count(*) from TestTempTable")
count, = self.cursor.fetchone()
self.assertEqual(count, len(rows))
def test_1219_executemany_with_rebind(self):
"1219 - test executing a statement multiple times (with rebind)"
self.cursor.execute("truncate table TestTempTable")
rows = [[n] for n in range(235)]
self.cursor.arraysize = 100
statement = "insert into TestTempTable (IntCol) values (:1)"
self.cursor.executemany(statement, rows[:50])
self.cursor.executemany(statement, rows[50:])
self.connection.commit()
self.cursor.execute("select count(*) from TestTempTable")
count, = self.cursor.fetchone()
self.assertEqual(count, len(rows))
def test_1220_executemany_with_input_sizes_wrong(self):
"1220 - test executing multiple times (with input sizes wrong)"
cursor = self.connection.cursor()
cursor.setinputsizes(oracledb.NUMBER)
data = [[decimal.Decimal("25.8")], [decimal.Decimal("30.0")]]
cursor.executemany("declare t number; begin t := :1; end;", data)
def test_1221_executemany_with_multiple_batches(self):
"1221 - test executing multiple times (with multiple batches)"
self.cursor.execute("truncate table TestTempTable")
sql = "insert into TestTempTable (IntCol, StringCol) values (:1, :2)"
self.cursor.executemany(sql, [(1, None), (2, None)])
self.cursor.executemany(sql, [(3, None), (4, "Testing")])
def test_1222_executemany_numeric(self):
"1222 - test executemany() with various numeric types"
self.cursor.execute("truncate table TestTempTable")
data = [
(1, 5),
(2, 7.0),
(3, 6.5),
(4, 2 ** 65),
(5, decimal.Decimal("24.5"))
]
sql = "insert into TestTempTable (IntCol, NumberCol) values (:1, :2)"
self.cursor.executemany(sql, data)
self.cursor.execute("""
select IntCol, NumberCol
from TestTempTable
order by IntCol""")
self.assertEqual(self.cursor.fetchall(), data)
def test_1223_executemany_with_resize(self):
"1223 - test executing a statement multiple times (with resize)"
self.cursor.execute("truncate table TestTempTable")
rows = [
(1, "First"),
(2, "Second"),
(3, "Third"),
(4, "Fourth"),
(5, "Fifth"),
(6, "Sixth"),
(7, "Seventh and the longest one")
]
sql = "insert into TestTempTable (IntCol, StringCol) values (:1, :2)"
self.cursor.executemany(sql, rows)
self.cursor.execute("""
select IntCol, StringCol
from TestTempTable
order by IntCol""")
fetched_rows = self.cursor.fetchall()
self.assertEqual(fetched_rows, rows)
def test_1224_executemany_with_exception(self):
"1224 - test executing a statement multiple times (with exception)"
self.cursor.execute("truncate table TestTempTable")
rows = [{"value": n} for n in (1, 2, 3, 2, 5)]
statement = "insert into TestTempTable (IntCol) values (:value)"
self.assertRaises(oracledb.DatabaseError, self.cursor.executemany,
statement, rows)
self.assertEqual(self.cursor.rowcount, 3)
def test_1225_executemany_with_invalid_parameters(self):
"1225 - test calling executemany() with invalid parameters"
sql = "insert into TestTempTable (IntCol, StringCol) values (:1, :2)"
self.assertRaises(TypeError, self.cursor.executemany, sql,
"These are not valid parameters")
def test_1226_executemany_no_parameters(self):
"1226 - test calling executemany() without any bind parameters"
num_rows = 5
self.cursor.execute("truncate table TestTempTable")
self.cursor.executemany("""
declare
t_Id number;
begin
select nvl(count(*), 0) + 1 into t_Id
from TestTempTable;
insert into TestTempTable (IntCol, StringCol)
values (t_Id, 'Test String ' || t_Id);
end;""", num_rows)
self.assertEqual(self.cursor.rowcount, num_rows)
self.cursor.execute("select count(*) from TestTempTable")
count, = self.cursor.fetchone()
self.assertEqual(count, num_rows)
def test_1227_executemany_bound_earlier(self):
"1227 - test calling executemany() with binds performed earlier"
num_rows = 9
self.cursor.execute("truncate table TestTempTable")
var = self.cursor.var(int, arraysize=num_rows)
self.cursor.setinputsizes(var)
self.cursor.executemany("""
declare
t_Id number;
begin
select nvl(count(*), 0) + 1 into t_Id
from TestTempTable;
insert into TestTempTable (IntCol, StringCol)
values (t_Id, 'Test String ' || t_Id);
select sum(IntCol) into :1
from TestTempTable;
end;""", num_rows)
self.assertEqual(self.cursor.rowcount, num_rows)
expected_data = [1, 3, 6, 10, 15, 21, 28, 36, 45]
self.assertEqual(var.values, expected_data)
def test_1228_prepare(self):
"1228 - test preparing a statement and executing it multiple times"
self.assertEqual(self.cursor.statement, None)
statement = "begin :value := :value + 5; end;"
self.cursor.prepare(statement)
var = self.cursor.var(oracledb.NUMBER)
self.assertEqual(self.cursor.statement, statement)
var.setvalue(0, 2)
self.cursor.execute(None, value = var)
self.assertEqual(var.getvalue(), 7)
self.cursor.execute(None, value = var)
self.assertEqual(var.getvalue(), 12)
self.cursor.execute("begin :value2 := 3; end;", value2 = var)
self.assertEqual(var.getvalue(), 3)
def test_1229_exception_on_close(self):
"1229 - confirm an exception is raised after closing a cursor"
self.cursor.close()
self.assertRaises(oracledb.InterfaceError, self.cursor.execute,
"select 1 from dual")
def test_1230_iterators(self):
"1230 - test iterators"
self.cursor.execute("""
select IntCol
from TestNumbers
where IntCol between 1 and 3
order by IntCol""")
rows = [v for v, in self.cursor]
self.assertEqual(rows, [1, 2, 3])
def test_1231_iterators_interrupted(self):
"1231 - test iterators (with intermediate execute)"
self.cursor.execute("truncate table TestTempTable")
self.cursor.execute("""
select IntCol
from TestNumbers
where IntCol between 1 and 3
order by IntCol""")
test_iter = iter(self.cursor)
value, = next(test_iter)
self.cursor.execute("insert into TestTempTable (IntCol) values (1)")
self.assertRaises(oracledb.InterfaceError, next, test_iter)
def test_1232_bind_names(self):
"1232 - test that bindnames() works correctly."
self.assertRaises(oracledb.ProgrammingError, self.cursor.bindnames)
self.cursor.prepare("begin null; end;")
self.assertEqual(self.cursor.bindnames(), [])
self.cursor.prepare("begin :retval := :inval + 5; end;")
self.assertEqual(self.cursor.bindnames(), ["RETVAL", "INVAL"])
self.cursor.prepare("begin :retval := :a * :a + :b * :b; end;")
self.assertEqual(self.cursor.bindnames(), ["RETVAL", "A", "B"])
self.cursor.prepare("begin :a := :b + :c + :d + :e + :f + :g + " + \
":h + :i + :j + :k + :l; end;")
names = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L"]
self.assertEqual(self.cursor.bindnames(), names)
self.cursor.prepare("select :a * :a + :b * :b from dual")
self.assertEqual(self.cursor.bindnames(), ["A", "B"])
def test_1233_bad_execute(self):
"1233 - test that subsequent executes succeed after bad execute"
self.assertRaises(oracledb.DatabaseError,
self.cursor.execute,
"begin raise_application_error(-20000, 'this); end;")
self.cursor.execute("begin null; end;")
def test_1234_fetch_after_bad_execute(self):
"1234 - test that subsequent fetches fail after bad execute"
self.assertRaises(oracledb.DatabaseError,
self.cursor.execute, "select y from dual")
self.assertRaises(oracledb.InterfaceError, self.cursor.fetchall)
def test_1235_scroll_absolute_exception_after(self):
"1235 - test scrolling absolute yields an exception (after result set)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
self.assertRaises(oracledb.DatabaseError, cursor.scroll, 12,
"absolute")
def test_1236_scroll_absolute_in_buffer(self):
"1236 - test scrolling absolute (when in buffers)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
cursor.fetchmany()
self.assertTrue(cursor.arraysize > 1,
"array size must exceed 1 for this test to work correctly")
cursor.scroll(1, mode="absolute")
row = cursor.fetchone()
self.assertEqual(row[0], 1.25)
self.assertEqual(cursor.rowcount, 1)
def test_1237_scroll_absolute_not_in_buffer(self):
"1237 - test scrolling absolute (when not in buffers)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
cursor.scroll(6, mode="absolute")
row = cursor.fetchone()
self.assertEqual(row[0], 7.5)
self.assertEqual(cursor.rowcount, 6)
def test_1238_scroll_first_in_buffer(self):
"1238 - test scrolling to first row in result set (in buffers)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
cursor.fetchmany()
cursor.scroll(mode="first")
row = cursor.fetchone()
self.assertEqual(row[0], 1.25)
self.assertEqual(cursor.rowcount, 1)
def test_1239_scroll_first_not_in_buffer(self):
"1239 - test scrolling to first row in result set (not in buffers)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
cursor.fetchmany()
cursor.fetchmany()
cursor.scroll(mode="first")
row = cursor.fetchone()
self.assertEqual(row[0], 1.25)
self.assertEqual(cursor.rowcount, 1)
def test_1240_scroll_last(self):
"1240 - test scrolling to last row in result set"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
cursor.scroll(mode="last")
row = cursor.fetchone()
self.assertEqual(row[0], 12.5)
self.assertEqual(cursor.rowcount, 10)
def test_1241_scroll_relative_exception_after(self):
"1241 - test scrolling relative yields an exception (after result set)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
self.assertRaises(oracledb.DatabaseError, cursor.scroll, 15)
def test_1242_scroll_relative_exception_before(self):
"1242 - test scrolling relative yields exception (before result set)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
self.assertRaises(oracledb.DatabaseError, cursor.scroll, -5)
def test_1243_scroll_relative_in_buffer(self):
"1243 - test scrolling relative (when in buffers)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
cursor.fetchmany()
message = "array size must exceed 1 for this test to work correctly"
self.assertTrue(cursor.arraysize > 1, message)
cursor.scroll(2 - cursor.rowcount)
row = cursor.fetchone()
self.assertEqual(row[0], 2.5)
self.assertEqual(cursor.rowcount, 2)
def test_1244_scroll_relative_not_in_buffer(self):
"1244 - test scrolling relative (when not in buffers)"
cursor = self.connection.cursor(scrollable=True)
cursor.arraysize = self.cursor.arraysize
cursor.execute("""
select NumberCol
from TestNumbers
order by IntCol""")
cursor.fetchmany()
cursor.fetchmany()
message = "array size must exceed 1 for this test to work correctly"
self.assertTrue(cursor.arraysize > 1, message)
cursor.scroll(3 - cursor.rowcount)
row = cursor.fetchone()
self.assertEqual(row[0], 3.75)
self.assertEqual(cursor.rowcount, 3)
def test_1245_scroll_no_rows(self):
"1245 - test scrolling when there are no rows"
self.cursor.execute("truncate table TestTempTable")
cursor = self.connection.cursor(scrollable=True)
cursor.execute("select * from TestTempTable")
cursor.scroll(mode="last")
self.assertEqual(cursor.fetchall(), [])
cursor.scroll(mode="first")
self.assertEqual(cursor.fetchall(), [])
self.assertRaises(oracledb.DatabaseError, cursor.scroll, 1,
mode="absolute")
def test_1246_scroll_differing_array_and_fetch_sizes(self):
"1246 - test scrolling with differing array and fetch array sizes"
self.cursor.execute("truncate table TestTempTable")
for i in range(30):
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (:1, null)""",
(i + 1,))
for arraysize in range(1, 6):
cursor = self.connection.cursor(scrollable = True)
cursor.arraysize = arraysize
cursor.execute("select IntCol from TestTempTable order by IntCol")
for num_rows in range(1, arraysize + 1):
cursor.scroll(15, "absolute")
rows = cursor.fetchmany(num_rows)
self.assertEqual(rows[0][0], 15)
self.assertEqual(cursor.rowcount, 15 + num_rows - 1)
cursor.scroll(9)
rows = cursor.fetchmany(num_rows)
num_rows_fetched = len(rows)
self.assertEqual(rows[0][0], 15 + num_rows + 8)
self.assertEqual(cursor.rowcount,
15 + num_rows + num_rows_fetched + 7)
cursor.scroll(-12)
rows = cursor.fetchmany(num_rows)
count = 15 + num_rows + num_rows_fetched - 5
self.assertEqual(rows[0][0], count)
count = 15 + num_rows + num_rows_fetched + num_rows - 6
self.assertEqual(cursor.rowcount, count)
def test_1247_set_input_sizes_negative(self):
"1247 - test cursor.setinputsizes() with invalid parameters"
val = decimal.Decimal(5)
self.assertRaises(oracledb.InterfaceError,
self.cursor.setinputsizes, val, x=val)
self.assertRaises(TypeError, self.cursor.setinputsizes, val)
def test_1248_set_input_sizes_no_parameters(self):
"1248 - test setting input sizes without any parameters"
self.cursor.setinputsizes()
self.cursor.execute("select :val from dual", val="Test Value")
self.assertEqual(self.cursor.fetchall(), [("Test Value",)])
def test_1249_set_input_sizes_empty_dict(self):
"1249 - test setting input sizes with an empty dictionary"
empty_dict = {}
self.cursor.prepare("select 236 from dual")
self.cursor.setinputsizes(**empty_dict)
self.cursor.execute(None, empty_dict)
self.assertEqual(self.cursor.fetchall(), [(236,)])
def test_1250_set_input_sizes_empty_list(self):
"1250 - test setting input sizes with an empty list"
empty_list = {}
self.cursor.prepare("select 239 from dual")
self.cursor.setinputsizes(*empty_list)
self.cursor.execute(None, empty_list)
self.assertEqual(self.cursor.fetchall(), [(239,)])
def test_1251_set_input_sizes_by_position(self):
"1251 - test setting input sizes with positional args"
var = self.cursor.var(oracledb.STRING, 100)
self.cursor.setinputsizes(None, 5, None, 10, None, oracledb.NUMBER)
self.cursor.execute("""
begin
:1 := :2 || to_char(:3) || :4 || to_char(:5) || to_char(:6);
end;""", [var, 'test_', 5, '_second_', 3, 7])
self.assertEqual(var.getvalue(), "test_5_second_37")
def test_1252_string_format(self):
"1252 - test string format of cursor"
format_string = "<cx_Oracle.Cursor on <cx_Oracle.Connection to %s@%s>>"
expected_value = format_string % \
(test_env.get_main_user(), test_env.get_connect_string())
self.assertEqual(str(self.cursor), expected_value)
def test_1253_cursor_fetch_raw(self):
"1253 - test cursor.fetchraw()"
cursor = self.connection.cursor()
cursor.arraysize = 25
cursor.execute("select LongIntCol from TestNumbers order by IntCol")
self.assertEqual(cursor.fetchraw(), 10)
self.assertEqual(cursor.fetchvars[0].getvalue(), 38)
def test_1254_parse_query(self):
"1254 - test parsing query statements"
sql = "select LongIntCol from TestNumbers where IntCol = :val"
self.cursor.parse(sql)
self.assertEqual(self.cursor.statement, sql)
self.assertEqual(self.cursor.description,
[('LONGINTCOL', oracledb.DB_TYPE_NUMBER, 17, None,
16, 0, 0)])
def test_1255_set_output_size(self):
"1255 - test cursor.setoutputsize() does not fail (but does nothing)"
self.cursor.setoutputsize(100, 2)
def test_1256_var_negative(self):
"1256 - test cursor.var() with invalid parameters"
self.assertRaises(TypeError, self.cursor.var, 5)
def test_1257_arrayvar_negative(self):
"1257 - test cursor.arrayvar() with invalid parameters"
self.assertRaises(TypeError, self.cursor.arrayvar, 5, 1)
def test_1258_boolean_without_plsql(self):
"1258 - test binding boolean data without the use of PL/SQL"
self.cursor.execute("truncate table TestTempTable")
sql = "insert into TestTempTable (IntCol, StringCol) values (:1, :2)"
self.cursor.execute(sql, (False, "Value should be 0"))
self.cursor.execute(sql, (True, "Value should be 1"))
self.cursor.execute("""
select IntCol, StringCol
from TestTempTable
order by IntCol""")
expected_value = [(0, "Value should be 0"), (1, "Value should be 1")]
self.assertEqual(self.cursor.fetchall(), expected_value)
def test_1259_as_context_manager(self):
"1259 - test using a cursor as a context manager"
with self.cursor as cursor:
cursor.execute("truncate table TestTempTable")
cursor.execute("select count(*) from TestTempTable")
count, = cursor.fetchone()
self.assertEqual(count, 0)
self.assertRaises(oracledb.InterfaceError, self.cursor.close)
def test_1260_query_row_count(self):
"1260 - test that rowcount attribute is reset to zero on query execute"
sql = "select * from dual where 1 = :s"
self.cursor.execute(sql, [0])
self.cursor.fetchone()
self.assertEqual(self.cursor.rowcount, 0)
self.cursor.execute(sql, [1])
self.cursor.fetchone()
self.assertEqual(self.cursor.rowcount, 1)
self.cursor.execute(sql, [1])
self.cursor.fetchone()
self.assertEqual(self.cursor.rowcount, 1)
self.cursor.execute(sql, [0])
self.cursor.fetchone()
self.assertEqual(self.cursor.rowcount, 0)
def test_1261_var_type_name_none(self):
"1261 - test that the typename attribute can be passed a value of None"
value_to_set = 5
var = self.cursor.var(int, typename=None)
var.setvalue(0, value_to_set)
self.assertEqual(var.getvalue(), value_to_set)
def test_1262_var_type_with_object_type(self):
"1262 - test that an object type can be used as type in cursor.var()"
obj_type = self.connection.gettype("UDT_OBJECT")
var = self.cursor.var(obj_type)
self.cursor.callproc("pkg_TestBindObject.BindObjectOut",
(28, "Bind obj out", var))
obj = var.getvalue()
result = self.cursor.callfunc("pkg_TestBindObject.GetStringRep", str,
(obj,))
exp = "udt_Object(28, 'Bind obj out', null, null, null, null, null)"
self.assertEqual(result, exp)
def test_1263_fetch_xmltype(self):
"1263 - test that fetching an XMLType returns a string"
int_val = 5
label = "IntCol"
expected_result = "<%s>%s</%s>" % (label, int_val, label)
self.cursor.execute("""
select XMLElement("%s", IntCol)
from TestStrings
where IntCol = :int_val""" % label,
int_val=int_val)
result, = self.cursor.fetchone()
self.assertEqual(result, expected_result)
def test_1264_lastrowid(self):
"1264 - test last rowid"
# no statement executed: no rowid
self.assertEqual(None, self.cursor.lastrowid)
# DDL statement executed: no rowid
self.cursor.execute("truncate table TestTempTable")
self.assertEqual(None, self.cursor.lastrowid)
# statement prepared: no rowid
self.cursor.prepare("insert into TestTempTable (IntCol) values (:1)")
self.assertEqual(None, self.cursor.lastrowid)
# multiple rows inserted: rowid of last row inserted
rows = [(n,) for n in range(225)]
self.cursor.executemany(None, rows)
rowid = self.cursor.lastrowid
self.cursor.execute("""
select rowid
from TestTempTable
where IntCol = :1""", rows[-1])
self.assertEqual(rowid, self.cursor.fetchone()[0])
# statement executed but no rows updated: no rowid
self.cursor.execute("delete from TestTempTable where 1 = 0")
self.assertEqual(None, self.cursor.lastrowid)
# stetement executed with one row updated: rowid of updated row
self.cursor.execute("""
update TestTempTable set
StringCol = 'Modified'
where IntCol = :1""", rows[-2])
rowid = self.cursor.lastrowid
self.cursor.execute("""
select rowid
from TestTempTable
where IntCol = :1""", rows[-2])
self.assertEqual(rowid, self.cursor.fetchone()[0])
# statement executed with many rows updated: rowid of last updated row
self.cursor.execute("""
update TestTempTable set
StringCol = 'Row ' || to_char(IntCol)
where IntCol = :1""", rows[-3])
rowid = self.cursor.lastrowid
self.cursor.execute("""
select StringCol
from TestTempTable
where rowid = :1""", [rowid])
self.assertEqual("Row %s" % rows[-3], self.cursor.fetchone()[0])
def test_1265_prefetchrows(self):
"1265 - test prefetch rows"
self.setup_round_trip_checker()
# perform simple query and verify only one round trip is needed
with self.connection.cursor() as cursor:
cursor.execute("select sysdate from dual").fetchall()
self.assertRoundTrips(1)
# set prefetchrows to 1 and verify that two round trips are now needed
with self.connection.cursor() as cursor:
cursor.prefetchrows = 1
cursor.execute("select sysdate from dual").fetchall()
self.assertRoundTrips(2)
# simple DDL only requires a single round trip
with self.connection.cursor() as cursor:
cursor.execute("truncate table TestTempTable")
self.assertRoundTrips(1)
# array execution only requires a single round trip
num_rows = 590
with self.connection.cursor() as cursor:
sql = "insert into TestTempTable (IntCol) values (:1)"
data = [(n + 1,) for n in range(num_rows)]
cursor.executemany(sql, data)
self.assertRoundTrips(1)
# setting prefetch and array size to 1 requires a round-trip for each
# row
with self.connection.cursor() as cursor:
cursor.prefetchrows = 1
cursor.arraysize = 1
cursor.execute("select IntCol from TestTempTable").fetchall()
self.assertRoundTrips(num_rows + 1)
# setting prefetch and array size to 300 requires 2 round-trips
with self.connection.cursor() as cursor:
cursor.prefetchrows = 300
cursor.arraysize = 300
cursor.execute("select IntCol from TestTempTable").fetchall()
self.assertRoundTrips(2)
def test_1266_refcursor_prefetchrows(self):
"1266 - test prefetch rows and arraysize using a refcursor"
self.setup_round_trip_checker()
# simple DDL only requires a single round trip
with self.connection.cursor() as cursor:
cursor.execute("truncate table TestTempTable")
self.assertRoundTrips(1)
# array execution only requires a single round trip
num_rows = 590
with self.connection.cursor() as cursor:
sql = "insert into TestTempTable (IntCol) values (:1)"
data = [(n + 1,) for n in range(num_rows)]
cursor.executemany(sql, data)
self.assertRoundTrips(1)
# create refcursor and execute stored procedure
with self.connection.cursor() as cursor:
refcursor = self.connection.cursor()
refcursor.prefetchrows = 150
refcursor.arraysize = 50
cursor.callproc("myrefcursorproc", [refcursor])
refcursor.fetchall()
self.assertRoundTrips(4)
def test_1267_existing_cursor_prefetchrows(self):
"1267 - test prefetch rows using existing cursor"
self.setup_round_trip_checker()
# Set prefetch rows on an existing cursor
num_rows = 590
with self.connection.cursor() as cursor:
cursor.execute("truncate table TestTempTable")
sql = "insert into TestTempTable (IntCol) values (:1)"
data = [(n + 1,) for n in range(num_rows)]
cursor.executemany(sql, data)
cursor.prefetchrows = 300
cursor.arraysize = 300
cursor.execute("select IntCol from TestTempTable").fetchall()
self.assertRoundTrips(4)
def test_1268_bind_names_with_single_line_comments(self):
"1268 - test bindnames() with single line comments"
self.cursor.prepare("""--begin :value2 := :a + :b + :c +:a +3; end;
begin :value2 := :a + :c +3; end;
""")
self.assertEqual(self.cursor.bindnames(), ["VALUE2", "A", "C"])
def test_1269_bind_names_with_multi_line_comments(self):
"1269 - test bindnames() with multi line comments"
self.cursor.prepare("""/*--select * from :a where :a = 1
select * from table_names where :a = 1*/
select * from :table_name where :value = 1
""")
self.assertEqual(self.cursor.bindnames(), ["TABLE_NAME", "VALUE"])
def test_1270_execute_bind_names_with_incorrect_bind(self):
"1270 - test executing a statement with an incorrect named bind"
statement = "select * from TestStrings where IntCol = :value"
self.assertRaises(oracledb.DatabaseError, self.cursor.execute,
statement, value2=3)
def test_1271_execute_with_named_binds(self):
"1271 - test executing a statement with named binds"
statement = "select * from TestNumbers where IntCol = :value1 " + \
"and LongIntCol = :value2"
result = self.cursor.execute(statement, value1=1, value2=38)
self.assertEqual(len(result.fetchall()), 1)
def test_1272_execute_bind_position_with_incorrect_bind(self):
"1272 - test executing a statement with an incorrect positional bind"
statement = "select * from TestNumbers where IntCol = :value " + \
"and LongIntCol = :value2"
self.assertRaises(oracledb.DatabaseError, self.cursor.execute,
statement, [3])
def test_1273_execute_with_positional_binds(self):
"1273 - test executing a statement with positional binds"
statement = "select * from TestNumbers where IntCol = :value " + \
"and LongIntCol = :value2"
result = self.cursor.execute(statement, [1,38])
self.assertEqual(len(result.fetchall()), 1)
def test_1274_execute_with_rebinding_bind_name(self):
"1274 - test executing a statement after rebinding a named bind"
statement = "begin :value := :value2 + 5; end;"
simple_var = self.cursor.var(oracledb.NUMBER)
simple_var2 = self.cursor.var(oracledb.NUMBER)
simple_var2.setvalue(0, 5)
result = self.cursor.execute(statement, value=simple_var,
value2=simple_var2)
self.assertEqual(result, None)
self.assertEqual(simple_var.getvalue(), 10)
simple_var = self.cursor.var(oracledb.NATIVE_FLOAT)
simple_var2 = self.cursor.var(oracledb.NATIVE_FLOAT)
simple_var2.setvalue(0, 10)
result = self.cursor.execute(statement, value=simple_var,
value2=simple_var2)
self.assertEqual(result, None)
self.assertEqual(simple_var.getvalue(), 15)
def test_1275_bind_names_with_strings(self):
"1275 - test bindnames() with strings in the statement"
statement = """
begin
:value := to_date('20021231 12:31:00',
'YYYYMMDD HH24:MI:SS');
end;"""
self.cursor.prepare(statement)
self.assertEqual(self.cursor.bindnames(), ["VALUE"])
def test_1276_bind_by_name_with_duplicates(self):
"1276 - test executing a PL/SQL statement with duplicate binds"
statement = "begin :value := :value + 5; end;"
simple_var = self.cursor.var(oracledb.NUMBER)
simple_var.setvalue(0, 5)
result = self.cursor.execute(statement, value=simple_var)
self.assertEqual(result, None)
self.assertEqual(simple_var.getvalue(), 10)
def test_1277_positional_bind_with_duplicates(self):
"1277 - test executing a PL/SQL statement with duplicate binds"
statement = "begin :value := :value + 5; end;"
simple_var = self.cursor.var(oracledb.NUMBER)
simple_var.setvalue(0, 5)
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), 10)
def test_1278_execute_with_incorrect_bind_values(self):
"1278 - test executing a statement with an incorrect number of binds"
statement = "begin :value := :value2 + 5; end;"
var = self.cursor.var(oracledb.NUMBER)
var.setvalue(0, 5)
self.assertRaises(oracledb.DatabaseError, self.cursor.execute,
statement)
self.assertRaises(oracledb.DatabaseError, self.cursor.execute,
statement, value=var)
self.assertRaises(oracledb.DatabaseError, self.cursor.execute,
statement, value=var, value2=var, value3=var)
def test_1279_change_in_size_on_successive_bind(self):
"1279 - change in size on subsequent binds does not use optimised path"
self.cursor.execute("truncate table TestTempTable")
data = [
(1, "Test String #1"),
(2, "ABC" * 100)
]
sql = "insert into TestTempTable (IntCol, StringCol) values (:1, :2)"
for row in data:
self.cursor.execute(sql, row)
self.connection.commit()
self.cursor.execute("select IntCol, StringCol from TestTempTable")
self.assertEqual(self.cursor.fetchall(), data)
def test_1280_change_in_type_on_successive_bind(self):
"1280 - change in type on subsequent binds cannot use optimised path"
sql = "select :1 from dual"
self.cursor.execute(sql, ('W',))
row, = self.cursor.fetchone()
self.assertEqual(row, 'W')
self.cursor.execute(sql, ('S',))
row, = self.cursor.fetchone()
self.assertEqual(row, 'S')
self.cursor.execute(sql, (7,))
row, = self.cursor.fetchone()
self.assertEqual(row, '7')
def test_1281_dml_can_use_optimised_path(self):
"1281 - test that dml can use optimised path"
data_to_insert = [
(1, "Test String #1"),
(2, "Test String #2"),
(3, "Test String #3")
]
self.cursor.execute("truncate table TestTempTable")
sql = "insert into TestTempTable (IntCol, StringCol) values (:1, :2)"
for row in data_to_insert:
with self.connection.cursor() as cursor:
cursor.execute(sql, row)
self.connection.commit()
self.cursor.execute("""
select IntCol, StringCol
from TestTempTable
order by IntCol""")
self.assertEqual(self.cursor.fetchall(), data_to_insert)
def test_1282_parse_plsql(self):
"1282 - test parsing plsql statements"
sql = "begin :value := 5; end;"
self.cursor.parse(sql)
self.assertEqual(self.cursor.statement, sql)
self.assertEqual(self.cursor.description, None)
def test_1283_parse_ddl(self):
"1283 - test parsing ddl statements"
sql = "truncate table TestTempTable"
self.cursor.parse(sql)
self.assertEqual(self.cursor.statement, sql)
self.assertEqual(self.cursor.description, None)
def test_1284_parse_dml(self):
"1284 - test parsing dml statements"
sql = "insert into TestTempTable (IntCol) values (1)"
self.cursor.parse(sql)
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