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#------------------------------------------------------------------------------
# Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
#------------------------------------------------------------------------------
"""
1600 - Module for testing DML returning clauses
"""
import cx_Oracle as oracledb
import test_env
class TestCase(test_env.BaseTestCase):
def test_1600_insert(self):
"1600 - test insert (single row) with DML returning"
self.cursor.execute("truncate table TestTempTable")
int_val = 5
str_val = "A test string"
int_var = self.cursor.var(oracledb.NUMBER)
str_var = self.cursor.var(str)
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (:int_val, :str_val)
returning IntCol, StringCol into :int_var, :str_var""",
int_val=int_val,
str_val=str_val,
int_var=int_var,
str_var=str_var)
self.assertEqual(int_var.values, [[int_val]])
self.assertEqual(str_var.values, [[str_val]])
def test_1601_insert_many(self):
"1601 - test insert (multiple rows) with DML returning"
self.cursor.execute("truncate table TestTempTable")
int_values = [5, 8, 17, 24, 6]
str_values = ["Test 5", "Test 8", "Test 17", "Test 24", "Test 6"]
int_var = self.cursor.var(oracledb.NUMBER, arraysize=len(int_values))
str_var = self.cursor.var(str, arraysize=len(int_values))
self.cursor.setinputsizes(None, None, int_var, str_var)
data = list(zip(int_values, str_values))
self.cursor.executemany("""
insert into TestTempTable (IntCol, StringCol)
values (:int_val, :str_val)
returning IntCol, StringCol into :int_var, :str_var""", data)
self.assertEqual(int_var.values, [[v] for v in int_values])
self.assertEqual(str_var.values, [[v] for v in str_values])
def test_1602_insert_with_small_size(self):
"1602 - test insert with DML returning into too small a variable"
self.cursor.execute("truncate table TestTempTable")
int_val = 6
str_val = "A different test string"
int_var = self.cursor.var(oracledb.NUMBER)
str_var = self.cursor.var(str, 2)
parameters = dict(int_val=int_val, str_val=str_val, int_var=int_var,
str_var=str_var)
self.assertRaises(oracledb.DatabaseError, self.cursor.execute, """
insert into TestTempTable (IntCol, StringCol)
values (:int_val, :str_val)
returning IntCol, StringCol into :int_var, :str_var""",
parameters)
def test_1603_update_single_row(self):
"1603 - test update single row with DML returning"
int_val = 7
str_val = "The updated value of the string"
self.cursor.execute("truncate table TestTempTable")
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (:1, :2)""",
(int_val, "The initial value of the string"))
int_var = self.cursor.var(oracledb.NUMBER)
str_var = self.cursor.var(str)
self.cursor.execute("""
update TestTempTable set
StringCol = :str_val
where IntCol = :int_val
returning IntCol, StringCol into :int_var, :str_var""",
int_val=int_val,
str_val=str_val,
int_var=int_var,
str_var=str_var)
self.assertEqual(int_var.values, [[int_val]])
self.assertEqual(str_var.values, [[str_val]])
def test_1604_update_no_rows(self):
"1604 - test update no rows with DML returning"
int_val = 8
str_val = "The updated value of the string"
self.cursor.execute("truncate table TestTempTable")
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (:1, :2)""",
(int_val, "The initial value of the string"))
int_var = self.cursor.var(oracledb.NUMBER)
str_var = self.cursor.var(str)
self.cursor.execute("""
update TestTempTable set
StringCol = :str_val
where IntCol = :int_val
returning IntCol, StringCol into :int_var, :str_var""",
int_val=int_val + 1,
str_val=str_val,
int_var=int_var,
str_var=str_var)
self.assertEqual(int_var.values, [[]])
self.assertEqual(str_var.values, [[]])
self.assertEqual(int_var.getvalue(), [])
self.assertEqual(str_var.getvalue(), [])
def test_1605_update_multiple_rows(self):
"1605 - test update multiple rows with DML returning"
self.cursor.execute("truncate table TestTempTable")
for i in (8, 9, 10):
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (:1, :2)""",
(i, "The initial value of string %d" % i))
int_var = self.cursor.var(oracledb.NUMBER)
str_var = self.cursor.var(str)
self.cursor.execute("""
update TestTempTable set
IntCol = IntCol + 15,
StringCol = 'The final value of string ' || to_char(IntCol)
returning IntCol, StringCol into :int_var, :str_var""",
int_var=int_var,
str_var=str_var)
self.assertEqual(self.cursor.rowcount, 3)
self.assertEqual(int_var.values, [[23, 24, 25]])
expected_values = [[
"The final value of string 8",
"The final value of string 9",
"The final value of string 10"
]]
self.assertEqual(str_var.values, expected_values)
def test_1606_update_multiple_rows_executemany(self):
"1606 - test update multiple rows with DML returning (executeMany)"
data = [(i, "The initial value of string %d" % i) \
for i in range(1, 11)]
self.cursor.execute("truncate table TestTempTable")
self.cursor.executemany("""
insert into TestTempTable (IntCol, StringCol)
values (:1, :2)""", data)
int_var = self.cursor.var(oracledb.NUMBER, arraysize=3)
str_var = self.cursor.var(str, arraysize=3)
self.cursor.setinputsizes(None, int_var, str_var)
self.cursor.executemany("""
update TestTempTable set
IntCol = IntCol + 25,
StringCol = 'Updated value of string ' || to_char(IntCol)
where IntCol < :inVal
returning IntCol, StringCol into :int_var, :str_var""",
[[3], [8], [11]])
expected_values = [
[26, 27],
[28, 29, 30, 31, 32],
[33, 34, 35]
]
self.assertEqual(int_var.values, expected_values)
expected_values = [
[
"Updated value of string 1",
"Updated value of string 2"
],
[
"Updated value of string 3",
"Updated value of string 4",
"Updated value of string 5",
"Updated value of string 6",
"Updated value of string 7"
],
[
"Updated value of string 8",
"Updated value of string 9",
"Updated value of string 10"
]
]
self.assertEqual(str_var.values, expected_values)
def test_1607_insert_and_return_object(self):
"1607 - test inserting an object with DML returning"
type_obj = self.connection.gettype("UDT_OBJECT")
string_value = "The string that will be verified"
obj = type_obj.newobject()
obj.STRINGVALUE = string_value
out_var = self.cursor.var(oracledb.DB_TYPE_OBJECT,
typename="UDT_OBJECT")
self.cursor.execute("""
insert into TestObjects (IntCol, ObjectCol)
values (4, :obj)
returning ObjectCol into :outObj""",
obj=obj, outObj=out_var)
result, = out_var.getvalue()
self.assertEqual(result.STRINGVALUE, string_value)
self.connection.rollback()
def test_1608_insert_and_return_rowid(self):
"1608 - test inserting a row and returning a rowid"
self.cursor.execute("truncate table TestTempTable")
var = self.cursor.var(oracledb.ROWID)
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (278, 'String 278')
returning rowid into :1""", (var,))
rowid, = var.getvalue()
self.cursor.execute("""
select IntCol, StringCol
from TestTempTable
where rowid = :1""",
(rowid,))
self.assertEqual(self.cursor.fetchall(), [(278, 'String 278')])
def test_1609_insert_with_ref_cursor(self):
"1609 - test inserting with a REF cursor and returning a rowid"
self.cursor.execute("truncate table TestTempTable")
var = self.cursor.var(oracledb.ROWID)
in_cursor = self.connection.cursor()
in_cursor.execute("""
select StringCol
from TestStrings
where IntCol >= 5
order by IntCol""")
self.cursor.execute("""
insert into TestTempTable (IntCol, StringCol)
values (187, pkg_TestRefCursors.TestInCursor(:1))
returning rowid into :2""", (in_cursor, var))
rowid, = var.getvalue()
self.cursor.execute("""
select IntCol, StringCol
from TestTempTable
where rowid = :1""",
(rowid,))
self.assertEqual(self.cursor.fetchall(),
[(187, 'String 7 (Modified)')])
def test_1610_delete_returning_decreasing_rows_returned(self):
"1610 - test delete returning decreasing number of rows"
data = [(i, "Test String %d" % i) for i in range(1, 11)]
self.cursor.execute("truncate table TestTempTable")
self.cursor.executemany("""
insert into TestTempTable (IntCol, StringCol)
values (:1, :2)""", data)
results = []
int_var = self.cursor.var(int)
self.cursor.setinputsizes(None, int_var)
for int_val in (5, 8, 10):
self.cursor.execute("""
delete from TestTempTable
where IntCol < :1
returning IntCol into :2""", [int_val])
results.append(int_var.getvalue())
self.assertEqual(results, [[1, 2, 3, 4], [5, 6, 7], [8, 9]])
def test_1611_delete_returning_no_rows_after_many_rows(self):
"1611 - test delete returning no rows after returning many rows"
data = [(i, "Test String %d" % i) for i in range(1, 11)]
self.cursor.execute("truncate table TestTempTable")
self.cursor.executemany("""
insert into TestTempTable (IntCol, StringCol)
values (:1, :2)""", data)
int_var = self.cursor.var(int)
self.cursor.execute("""
delete from TestTempTable
where IntCol < :1
returning IntCol into :2""", [5, int_var])
self.assertEqual(int_var.getvalue(), [1, 2, 3, 4])
self.cursor.execute(None, [4, int_var])
self.assertEqual(int_var.getvalue(), [])
if __name__ == "__main__":
test_env.run_test_cases()
|
