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test_oracle.py
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test_oracle.py
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# coding: utf-8
from sqlalchemy.testing import eq_
from sqlalchemy import *
from sqlalchemy import types as sqltypes, exc, schema
from sqlalchemy.sql import table, column
from sqlalchemy.testing import fixtures, AssertsExecutionResults, AssertsCompiledSQL
from sqlalchemy import testing
from sqlalchemy.util import u, b
from sqlalchemy import util
from sqlalchemy.testing import assert_raises, assert_raises_message
from sqlalchemy.testing.engines import testing_engine
from sqlalchemy.dialects.oracle import cx_oracle, base as oracle
from sqlalchemy.engine import default
import decimal
from sqlalchemy.testing.schema import Table, Column
import datetime
import os
from sqlalchemy import sql
from sqlalchemy.testing.mock import Mock
class OutParamTest(fixtures.TestBase, AssertsExecutionResults):
__only_on__ = 'oracle+cx_oracle'
@classmethod
def setup_class(cls):
testing.db.execute("""
create or replace procedure foo(x_in IN number, x_out OUT number,
y_out OUT number, z_out OUT varchar) IS
retval number;
begin
retval := 6;
x_out := 10;
y_out := x_in * 15;
z_out := NULL;
end;
""")
def test_out_params(self):
result = testing.db.execute(text('begin foo(:x_in, :x_out, :y_out, '
':z_out); end;',
bindparams=[bindparam('x_in', Float),
outparam('x_out', Integer),
outparam('y_out', Float),
outparam('z_out', String)]), x_in=5)
eq_(result.out_parameters,
{'x_out': 10, 'y_out': 75, 'z_out': None})
assert isinstance(result.out_parameters['x_out'], int)
@classmethod
def teardown_class(cls):
testing.db.execute("DROP PROCEDURE foo")
class CXOracleArgsTest(fixtures.TestBase):
__only_on__ = 'oracle+cx_oracle'
def test_autosetinputsizes(self):
dialect = cx_oracle.dialect()
assert dialect.auto_setinputsizes
dialect = cx_oracle.dialect(auto_setinputsizes=False)
assert not dialect.auto_setinputsizes
def test_exclude_inputsizes_none(self):
dialect = cx_oracle.dialect(exclude_setinputsizes=None)
eq_(dialect.exclude_setinputsizes, set())
def test_exclude_inputsizes_custom(self):
import cx_Oracle
dialect = cx_oracle.dialect(dbapi=cx_Oracle,
exclude_setinputsizes=('NCLOB',))
eq_(dialect.exclude_setinputsizes, set([cx_Oracle.NCLOB]))
class QuotedBindRoundTripTest(fixtures.TestBase):
__only_on__ = 'oracle'
@testing.provide_metadata
def test_table_round_trip(self):
oracle.RESERVED_WORDS.remove('UNION')
metadata = self.metadata
table = Table("t1", metadata,
Column("option", Integer),
Column("plain", Integer, quote=True),
# test that quote works for a reserved word
# that the dialect isn't aware of when quote
# is set
Column("union", Integer, quote=True)
)
metadata.create_all()
table.insert().execute(
{"option": 1, "plain": 1, "union": 1}
)
eq_(
testing.db.execute(table.select()).first(),
(1, 1, 1)
)
table.update().values(option=2, plain=2, union=2).execute()
eq_(
testing.db.execute(table.select()).first(),
(2, 2, 2)
)
class CompileTest(fixtures.TestBase, AssertsCompiledSQL):
__dialect__ = "oracle" #oracle.dialect()
def test_true_false(self):
self.assert_compile(
sql.false(), "0"
)
self.assert_compile(
sql.true(),
"1"
)
def test_owner(self):
meta = MetaData()
parent = Table('parent', meta, Column('id', Integer,
primary_key=True), Column('name', String(50)),
schema='ed')
child = Table('child', meta, Column('id', Integer,
primary_key=True), Column('parent_id', Integer,
ForeignKey('ed.parent.id')), schema='ed')
self.assert_compile(parent.join(child),
'ed.parent JOIN ed.child ON ed.parent.id = '
'ed.child.parent_id')
def test_subquery(self):
t = table('sometable', column('col1'), column('col2'))
s = select([t])
s = select([s.c.col1, s.c.col2])
self.assert_compile(s, "SELECT col1, col2 FROM (SELECT "
"sometable.col1 AS col1, sometable.col2 "
"AS col2 FROM sometable)")
def test_bindparam_quote(self):
"""test that bound parameters take on quoting for reserved words,
column names quote flag enabled."""
# note: this is only in cx_oracle at the moment. not sure
# what other hypothetical oracle dialects might need
self.assert_compile(
bindparam("option"), ':"option"'
)
self.assert_compile(
bindparam("plain"), ':plain'
)
t = Table("s", MetaData(), Column('plain', Integer, quote=True))
self.assert_compile(
t.insert().values(plain=5), 'INSERT INTO s ("plain") VALUES (:"plain")'
)
self.assert_compile(
t.update().values(plain=5), 'UPDATE s SET "plain"=:"plain"'
)
def test_limit(self):
t = table('sometable', column('col1'), column('col2'))
s = select([t])
c = s.compile(dialect=oracle.OracleDialect())
assert t.c.col1 in set(c.result_map['col1'][1])
s = select([t]).limit(10).offset(20)
self.assert_compile(s,
'SELECT col1, col2 FROM (SELECT col1, '
'col2, ROWNUM AS ora_rn FROM (SELECT '
'sometable.col1 AS col1, sometable.col2 AS '
'col2 FROM sometable) WHERE ROWNUM <= '
':ROWNUM_1) WHERE ora_rn > :ora_rn_1')
c = s.compile(dialect=oracle.OracleDialect())
assert t.c.col1 in set(c.result_map['col1'][1])
s = select([s.c.col1, s.c.col2])
self.assert_compile(s,
'SELECT col1, col2 FROM (SELECT col1, col2 '
'FROM (SELECT col1, col2, ROWNUM AS ora_rn '
'FROM (SELECT sometable.col1 AS col1, '
'sometable.col2 AS col2 FROM sometable) '
'WHERE ROWNUM <= :ROWNUM_1) WHERE ora_rn > '
':ora_rn_1)')
self.assert_compile(s,
'SELECT col1, col2 FROM (SELECT col1, col2 '
'FROM (SELECT col1, col2, ROWNUM AS ora_rn '
'FROM (SELECT sometable.col1 AS col1, '
'sometable.col2 AS col2 FROM sometable) '
'WHERE ROWNUM <= :ROWNUM_1) WHERE ora_rn > '
':ora_rn_1)')
s = select([t]).limit(10).offset(20).order_by(t.c.col2)
self.assert_compile(s,
'SELECT col1, col2 FROM (SELECT col1, '
'col2, ROWNUM AS ora_rn FROM (SELECT '
'sometable.col1 AS col1, sometable.col2 AS '
'col2 FROM sometable ORDER BY '
'sometable.col2) WHERE ROWNUM <= '
':ROWNUM_1) WHERE ora_rn > :ora_rn_1')
s = select([t], for_update=True).limit(10).order_by(t.c.col2)
self.assert_compile(s,
'SELECT col1, col2 FROM (SELECT '
'sometable.col1 AS col1, sometable.col2 AS '
'col2 FROM sometable ORDER BY '
'sometable.col2) WHERE ROWNUM <= :ROWNUM_1 '
'FOR UPDATE')
s = select([t],
for_update=True).limit(10).offset(20).order_by(t.c.col2)
self.assert_compile(s,
'SELECT col1, col2 FROM (SELECT col1, '
'col2, ROWNUM AS ora_rn FROM (SELECT '
'sometable.col1 AS col1, sometable.col2 AS '
'col2 FROM sometable ORDER BY '
'sometable.col2) WHERE ROWNUM <= '
':ROWNUM_1) WHERE ora_rn > :ora_rn_1 FOR '
'UPDATE')
def test_for_update(self):
table1 = table('mytable',
column('myid'), column('name'), column('description'))
self.assert_compile(
table1.select(table1.c.myid == 7).with_for_update(),
"SELECT mytable.myid, mytable.name, mytable.description "
"FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE")
self.assert_compile(
table1.select(table1.c.myid == 7).with_for_update(of=table1.c.myid),
"SELECT mytable.myid, mytable.name, mytable.description "
"FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE OF mytable.myid")
self.assert_compile(
table1.select(table1.c.myid == 7).with_for_update(nowait=True),
"SELECT mytable.myid, mytable.name, mytable.description "
"FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE NOWAIT")
self.assert_compile(
table1.select(table1.c.myid == 7).
with_for_update(nowait=True, of=table1.c.myid),
"SELECT mytable.myid, mytable.name, mytable.description "
"FROM mytable WHERE mytable.myid = :myid_1 "
"FOR UPDATE OF mytable.myid NOWAIT")
self.assert_compile(
table1.select(table1.c.myid == 7).
with_for_update(nowait=True, of=[table1.c.myid, table1.c.name]),
"SELECT mytable.myid, mytable.name, mytable.description "
"FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE OF "
"mytable.myid, mytable.name NOWAIT")
ta = table1.alias()
self.assert_compile(
ta.select(ta.c.myid == 7).
with_for_update(of=[ta.c.myid, ta.c.name]),
"SELECT mytable_1.myid, mytable_1.name, mytable_1.description "
"FROM mytable mytable_1 "
"WHERE mytable_1.myid = :myid_1 FOR UPDATE OF "
"mytable_1.myid, mytable_1.name"
)
def test_limit_preserves_typing_information(self):
class MyType(TypeDecorator):
impl = Integer
stmt = select([type_coerce(column('x'), MyType).label('foo')]).limit(1)
dialect = oracle.dialect()
compiled = stmt.compile(dialect=dialect)
assert isinstance(compiled.result_map['foo'][-1], MyType)
def test_use_binds_for_limits_disabled(self):
t = table('sometable', column('col1'), column('col2'))
dialect = oracle.OracleDialect(use_binds_for_limits=False)
self.assert_compile(select([t]).limit(10),
"SELECT col1, col2 FROM (SELECT sometable.col1 AS col1, "
"sometable.col2 AS col2 FROM sometable) WHERE ROWNUM <= 10",
dialect=dialect)
self.assert_compile(select([t]).offset(10),
"SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
"FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
"FROM sometable)) WHERE ora_rn > 10",
dialect=dialect)
self.assert_compile(select([t]).limit(10).offset(10),
"SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
"FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
"FROM sometable) WHERE ROWNUM <= 20) WHERE ora_rn > 10",
dialect=dialect)
def test_use_binds_for_limits_enabled(self):
t = table('sometable', column('col1'), column('col2'))
dialect = oracle.OracleDialect(use_binds_for_limits=True)
self.assert_compile(select([t]).limit(10),
"SELECT col1, col2 FROM (SELECT sometable.col1 AS col1, "
"sometable.col2 AS col2 FROM sometable) WHERE ROWNUM "
"<= :ROWNUM_1",
dialect=dialect)
self.assert_compile(select([t]).offset(10),
"SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
"FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
"FROM sometable)) WHERE ora_rn > :ora_rn_1",
dialect=dialect)
self.assert_compile(select([t]).limit(10).offset(10),
"SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
"FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
"FROM sometable) WHERE ROWNUM <= :ROWNUM_1) WHERE ora_rn > "
":ora_rn_1",
dialect=dialect)
def test_long_labels(self):
dialect = default.DefaultDialect()
dialect.max_identifier_length = 30
ora_dialect = oracle.dialect()
m = MetaData()
a_table = Table(
'thirty_characters_table_xxxxxx',
m,
Column('id', Integer, primary_key=True)
)
other_table = Table(
'other_thirty_characters_table_',
m,
Column('id', Integer, primary_key=True),
Column('thirty_characters_table_id',
Integer,
ForeignKey('thirty_characters_table_xxxxxx.id'),
primary_key=True
)
)
anon = a_table.alias()
self.assert_compile(select([other_table,
anon]).
select_from(
other_table.outerjoin(anon)).apply_labels(),
'SELECT other_thirty_characters_table_.id '
'AS other_thirty_characters__1, '
'other_thirty_characters_table_.thirty_char'
'acters_table_id AS other_thirty_characters'
'__2, thirty_characters_table__1.id AS '
'thirty_characters_table__3 FROM '
'other_thirty_characters_table_ LEFT OUTER '
'JOIN thirty_characters_table_xxxxxx AS '
'thirty_characters_table__1 ON '
'thirty_characters_table__1.id = '
'other_thirty_characters_table_.thirty_char'
'acters_table_id', dialect=dialect)
self.assert_compile(select([other_table,
anon]).select_from(
other_table.outerjoin(anon)).apply_labels(),
'SELECT other_thirty_characters_table_.id '
'AS other_thirty_characters__1, '
'other_thirty_characters_table_.thirty_char'
'acters_table_id AS other_thirty_characters'
'__2, thirty_characters_table__1.id AS '
'thirty_characters_table__3 FROM '
'other_thirty_characters_table_ LEFT OUTER '
'JOIN thirty_characters_table_xxxxxx '
'thirty_characters_table__1 ON '
'thirty_characters_table__1.id = '
'other_thirty_characters_table_.thirty_char'
'acters_table_id', dialect=ora_dialect)
def test_outer_join(self):
table1 = table('mytable',
column('myid', Integer),
column('name', String),
column('description', String),
)
table2 = table(
'myothertable',
column('otherid', Integer),
column('othername', String),
)
table3 = table(
'thirdtable',
column('userid', Integer),
column('otherstuff', String),
)
query = select([table1, table2], or_(table1.c.name == 'fred',
table1.c.myid == 10, table2.c.othername != 'jack',
'EXISTS (select yay from foo where boo = lar)'
), from_obj=[outerjoin(table1, table2,
table1.c.myid == table2.c.otherid)])
self.assert_compile(query,
'SELECT mytable.myid, mytable.name, '
'mytable.description, myothertable.otherid,'
' myothertable.othername FROM mytable, '
'myothertable WHERE (mytable.name = '
':name_1 OR mytable.myid = :myid_1 OR '
'myothertable.othername != :othername_1 OR '
'EXISTS (select yay from foo where boo = '
'lar)) AND mytable.myid = '
'myothertable.otherid(+)',
dialect=oracle.OracleDialect(use_ansi=False))
query = table1.outerjoin(table2, table1.c.myid
== table2.c.otherid).outerjoin(table3,
table3.c.userid == table2.c.otherid)
self.assert_compile(query.select(),
'SELECT mytable.myid, mytable.name, '
'mytable.description, myothertable.otherid,'
' myothertable.othername, '
'thirdtable.userid, thirdtable.otherstuff '
'FROM mytable LEFT OUTER JOIN myothertable '
'ON mytable.myid = myothertable.otherid '
'LEFT OUTER JOIN thirdtable ON '
'thirdtable.userid = myothertable.otherid')
self.assert_compile(query.select(),
'SELECT mytable.myid, mytable.name, '
'mytable.description, myothertable.otherid,'
' myothertable.othername, '
'thirdtable.userid, thirdtable.otherstuff '
'FROM mytable, myothertable, thirdtable '
'WHERE thirdtable.userid(+) = '
'myothertable.otherid AND mytable.myid = '
'myothertable.otherid(+)',
dialect=oracle.dialect(use_ansi=False))
query = table1.join(table2, table1.c.myid
== table2.c.otherid).join(table3,
table3.c.userid == table2.c.otherid)
self.assert_compile(query.select(),
'SELECT mytable.myid, mytable.name, '
'mytable.description, myothertable.otherid,'
' myothertable.othername, '
'thirdtable.userid, thirdtable.otherstuff '
'FROM mytable, myothertable, thirdtable '
'WHERE thirdtable.userid = '
'myothertable.otherid AND mytable.myid = '
'myothertable.otherid',
dialect=oracle.dialect(use_ansi=False))
query = table1.join(table2, table1.c.myid
== table2.c.otherid).outerjoin(table3,
table3.c.userid == table2.c.otherid)
self.assert_compile(query.select().order_by(table1.c.name).
limit(10).offset(5),
'SELECT myid, name, description, otherid, '
'othername, userid, otherstuff FROM '
'(SELECT myid, name, description, otherid, '
'othername, userid, otherstuff, ROWNUM AS '
'ora_rn FROM (SELECT mytable.myid AS myid, '
'mytable.name AS name, mytable.description '
'AS description, myothertable.otherid AS '
'otherid, myothertable.othername AS '
'othername, thirdtable.userid AS userid, '
'thirdtable.otherstuff AS otherstuff FROM '
'mytable, myothertable, thirdtable WHERE '
'thirdtable.userid(+) = '
'myothertable.otherid AND mytable.myid = '
'myothertable.otherid ORDER BY '
'mytable.name) WHERE ROWNUM <= :ROWNUM_1) '
'WHERE ora_rn > :ora_rn_1',
dialect=oracle.dialect(use_ansi=False))
subq = select([table1]).select_from(table1.outerjoin(table2,
table1.c.myid == table2.c.otherid)).alias()
q = select([table3]).select_from(table3.outerjoin(subq,
table3.c.userid == subq.c.myid))
self.assert_compile(q,
'SELECT thirdtable.userid, '
'thirdtable.otherstuff FROM thirdtable '
'LEFT OUTER JOIN (SELECT mytable.myid AS '
'myid, mytable.name AS name, '
'mytable.description AS description FROM '
'mytable LEFT OUTER JOIN myothertable ON '
'mytable.myid = myothertable.otherid) '
'anon_1 ON thirdtable.userid = anon_1.myid',
dialect=oracle.dialect(use_ansi=True))
self.assert_compile(q,
'SELECT thirdtable.userid, '
'thirdtable.otherstuff FROM thirdtable, '
'(SELECT mytable.myid AS myid, '
'mytable.name AS name, mytable.description '
'AS description FROM mytable, myothertable '
'WHERE mytable.myid = myothertable.otherid('
'+)) anon_1 WHERE thirdtable.userid = '
'anon_1.myid(+)',
dialect=oracle.dialect(use_ansi=False))
q = select([table1.c.name]).where(table1.c.name == 'foo')
self.assert_compile(q,
'SELECT mytable.name FROM mytable WHERE '
'mytable.name = :name_1',
dialect=oracle.dialect(use_ansi=False))
subq = select([table3.c.otherstuff]).where(table3.c.otherstuff
== table1.c.name).label('bar')
q = select([table1.c.name, subq])
self.assert_compile(q,
'SELECT mytable.name, (SELECT '
'thirdtable.otherstuff FROM thirdtable '
'WHERE thirdtable.otherstuff = '
'mytable.name) AS bar FROM mytable',
dialect=oracle.dialect(use_ansi=False))
def test_nonansi_nested_right_join(self):
a = table('a', column('a'))
b = table('b', column('b'))
c = table('c', column('c'))
j = a.join(b.join(c, b.c.b == c.c.c), a.c.a == b.c.b)
self.assert_compile(
select([j]),
"SELECT a.a, b.b, c.c FROM a, b, c "
"WHERE a.a = b.b AND b.b = c.c",
dialect=oracle.OracleDialect(use_ansi=False)
)
j = a.outerjoin(b.join(c, b.c.b == c.c.c), a.c.a == b.c.b)
self.assert_compile(
select([j]),
"SELECT a.a, b.b, c.c FROM a, b, c "
"WHERE a.a = b.b(+) AND b.b = c.c",
dialect=oracle.OracleDialect(use_ansi=False)
)
j = a.join(b.outerjoin(c, b.c.b == c.c.c), a.c.a == b.c.b)
self.assert_compile(
select([j]),
"SELECT a.a, b.b, c.c FROM a, b, c "
"WHERE a.a = b.b AND b.b = c.c(+)",
dialect=oracle.OracleDialect(use_ansi=False)
)
def test_alias_outer_join(self):
address_types = table('address_types', column('id'),
column('name'))
addresses = table('addresses', column('id'), column('user_id'),
column('address_type_id'),
column('email_address'))
at_alias = address_types.alias()
s = select([at_alias,
addresses]).select_from(addresses.outerjoin(at_alias,
addresses.c.address_type_id
== at_alias.c.id)).where(addresses.c.user_id
== 7).order_by(addresses.c.id, address_types.c.id)
self.assert_compile(s,
'SELECT address_types_1.id, '
'address_types_1.name, addresses.id, '
'addresses.user_id, addresses.address_type_'
'id, addresses.email_address FROM '
'addresses LEFT OUTER JOIN address_types '
'address_types_1 ON addresses.address_type_'
'id = address_types_1.id WHERE '
'addresses.user_id = :user_id_1 ORDER BY '
'addresses.id, address_types.id')
def test_returning_insert(self):
t1 = table('t1', column('c1'), column('c2'), column('c3'))
self.assert_compile(
t1.insert().values(c1=1).returning(t1.c.c2, t1.c.c3),
"INSERT INTO t1 (c1) VALUES (:c1) RETURNING "
"t1.c2, t1.c3 INTO :ret_0, :ret_1"
)
def test_returning_insert_functional(self):
t1 = table('t1', column('c1'), column('c2', String()), column('c3', String()))
fn = func.lower(t1.c.c2, type_=String())
stmt = t1.insert().values(c1=1).returning(fn, t1.c.c3)
compiled = stmt.compile(dialect=oracle.dialect())
eq_(
compiled.result_map,
{'ret_1': ('ret_1', (t1.c.c3, 'c3', 'c3'), t1.c.c3.type),
'ret_0': ('ret_0', (fn, 'lower', None), fn.type)}
)
self.assert_compile(
stmt,
"INSERT INTO t1 (c1) VALUES (:c1) RETURNING "
"lower(t1.c2), t1.c3 INTO :ret_0, :ret_1"
)
def test_returning_insert_labeled(self):
t1 = table('t1', column('c1'), column('c2'), column('c3'))
self.assert_compile(
t1.insert().values(c1=1).returning(
t1.c.c2.label('c2_l'), t1.c.c3.label('c3_l')),
"INSERT INTO t1 (c1) VALUES (:c1) RETURNING "
"t1.c2, t1.c3 INTO :ret_0, :ret_1"
)
def test_compound(self):
t1 = table('t1', column('c1'), column('c2'), column('c3'))
t2 = table('t2', column('c1'), column('c2'), column('c3'))
self.assert_compile(union(t1.select(), t2.select()),
'SELECT t1.c1, t1.c2, t1.c3 FROM t1 UNION '
'SELECT t2.c1, t2.c2, t2.c3 FROM t2')
self.assert_compile(except_(t1.select(), t2.select()),
'SELECT t1.c1, t1.c2, t1.c3 FROM t1 MINUS '
'SELECT t2.c1, t2.c2, t2.c3 FROM t2')
def test_no_paren_fns(self):
for fn, expected in [
(func.uid(), "uid"),
(func.UID(), "UID"),
(func.sysdate(), "sysdate"),
(func.row_number(), "row_number()"),
(func.rank(), "rank()"),
(func.now(), "CURRENT_TIMESTAMP"),
(func.current_timestamp(), "CURRENT_TIMESTAMP"),
(func.user(), "USER"),
]:
self.assert_compile(fn, expected)
def test_create_index_alt_schema(self):
m = MetaData()
t1 = Table('foo', m,
Column('x', Integer),
schema="alt_schema"
)
self.assert_compile(
schema.CreateIndex(Index("bar", t1.c.x)),
"CREATE INDEX alt_schema.bar ON alt_schema.foo (x)"
)
def test_create_index_expr(self):
m = MetaData()
t1 = Table('foo', m,
Column('x', Integer)
)
self.assert_compile(
schema.CreateIndex(Index("bar", t1.c.x > 5)),
"CREATE INDEX bar ON foo (x > 5)"
)
class CompatFlagsTest(fixtures.TestBase, AssertsCompiledSQL):
def _dialect(self, server_version, **kw):
def server_version_info(conn):
return server_version
dialect = oracle.dialect(
dbapi=Mock(version="0.0.0", paramstyle="named"),
**kw)
dialect._get_server_version_info = server_version_info
dialect._check_unicode_returns = Mock()
dialect._check_unicode_description = Mock()
dialect._get_default_schema_name = Mock()
return dialect
def test_ora8_flags(self):
dialect = self._dialect((8, 2, 5))
# before connect, assume modern DB
assert dialect._supports_char_length
assert dialect._supports_nchar
assert dialect.use_ansi
dialect.initialize(Mock())
assert not dialect.implicit_returning
assert not dialect._supports_char_length
assert not dialect._supports_nchar
assert not dialect.use_ansi
self.assert_compile(String(50), "VARCHAR2(50)", dialect=dialect)
self.assert_compile(Unicode(50), "VARCHAR2(50)", dialect=dialect)
self.assert_compile(UnicodeText(), "CLOB", dialect=dialect)
dialect = self._dialect((8, 2, 5), implicit_returning=True)
dialect.initialize(testing.db.connect())
assert dialect.implicit_returning
def test_default_flags(self):
"""test with no initialization or server version info"""
dialect = self._dialect(None)
assert dialect._supports_char_length
assert dialect._supports_nchar
assert dialect.use_ansi
self.assert_compile(String(50), "VARCHAR2(50 CHAR)", dialect=dialect)
self.assert_compile(Unicode(50), "NVARCHAR2(50)", dialect=dialect)
self.assert_compile(UnicodeText(), "NCLOB", dialect=dialect)
def test_ora10_flags(self):
dialect = self._dialect((10, 2, 5))
dialect.initialize(Mock())
assert dialect._supports_char_length
assert dialect._supports_nchar
assert dialect.use_ansi
self.assert_compile(String(50), "VARCHAR2(50 CHAR)", dialect=dialect)
self.assert_compile(Unicode(50), "NVARCHAR2(50)", dialect=dialect)
self.assert_compile(UnicodeText(), "NCLOB", dialect=dialect)
class MultiSchemaTest(fixtures.TestBase, AssertsCompiledSQL):
__only_on__ = 'oracle'
@classmethod
def setup_class(cls):
# currently assuming full DBA privs for the user.
# don't really know how else to go here unless
# we connect as the other user.
for stmt in """
create table test_schema.parent(
id integer primary key,
data varchar2(50)
);
create table test_schema.child(
id integer primary key,
data varchar2(50),
parent_id integer references test_schema.parent(id)
);
create table local_table(
id integer primary key,
data varchar2(50)
);
create synonym test_schema.ptable for test_schema.parent;
create synonym test_schema.ctable for test_schema.child;
create synonym test_schema_ptable for test_schema.parent;
create synonym test_schema.local_table for local_table;
-- can't make a ref from local schema to the
-- remote schema's table without this,
-- *and* cant give yourself a grant !
-- so we give it to public. ideas welcome.
grant references on test_schema.parent to public;
grant references on test_schema.child to public;
""".split(";"):
if stmt.strip():
testing.db.execute(stmt)
@classmethod
def teardown_class(cls):
for stmt in """
drop table test_schema.child;
drop table test_schema.parent;
drop table local_table;
drop synonym test_schema.ctable;
drop synonym test_schema.ptable;
drop synonym test_schema_ptable;
drop synonym test_schema.local_table;
""".split(";"):
if stmt.strip():
testing.db.execute(stmt)
@testing.provide_metadata
def test_create_same_names_explicit_schema(self):
schema = testing.db.dialect.default_schema_name
meta = self.metadata
parent = Table('parent', meta,
Column('pid', Integer, primary_key=True),
schema=schema
)
child = Table('child', meta,
Column('cid', Integer, primary_key=True),
Column('pid', Integer, ForeignKey('%s.parent.pid' % schema)),
schema=schema
)
meta.create_all()
parent.insert().execute({'pid': 1})
child.insert().execute({'cid': 1, 'pid': 1})
eq_(child.select().execute().fetchall(), [(1, 1)])
def test_reflect_alt_table_owner_local_synonym(self):
meta = MetaData(testing.db)
parent = Table('test_schema_ptable', meta, autoload=True,
oracle_resolve_synonyms=True)
self.assert_compile(parent.select(),
"SELECT test_schema_ptable.id, "
"test_schema_ptable.data FROM test_schema_ptable")
select([parent]).execute().fetchall()
def test_reflect_alt_synonym_owner_local_table(self):
meta = MetaData(testing.db)
parent = Table('local_table', meta, autoload=True,
oracle_resolve_synonyms=True, schema="test_schema")
self.assert_compile(parent.select(),
"SELECT test_schema.local_table.id, "
"test_schema.local_table.data FROM test_schema.local_table")
select([parent]).execute().fetchall()
@testing.provide_metadata
def test_create_same_names_implicit_schema(self):
meta = self.metadata
parent = Table('parent', meta,
Column('pid', Integer, primary_key=True),
)
child = Table('child', meta,
Column('cid', Integer, primary_key=True),
Column('pid', Integer, ForeignKey('parent.pid')),
)
meta.create_all()
parent.insert().execute({'pid': 1})
child.insert().execute({'cid': 1, 'pid': 1})
eq_(child.select().execute().fetchall(), [(1, 1)])
def test_reflect_alt_owner_explicit(self):
meta = MetaData(testing.db)
parent = Table('parent', meta, autoload=True, schema='test_schema')
child = Table('child', meta, autoload=True, schema='test_schema')
self.assert_compile(parent.join(child),
"test_schema.parent JOIN test_schema.child ON "
"test_schema.parent.id = test_schema.child.parent_id")
select([parent, child]).\
select_from(parent.join(child)).\
execute().fetchall()
def test_reflect_local_to_remote(self):
testing.db.execute('CREATE TABLE localtable (id INTEGER '
'PRIMARY KEY, parent_id INTEGER REFERENCES '
'test_schema.parent(id))')
try:
meta = MetaData(testing.db)
lcl = Table('localtable', meta, autoload=True)
parent = meta.tables['test_schema.parent']
self.assert_compile(parent.join(lcl),
'test_schema.parent JOIN localtable ON '
'test_schema.parent.id = '
'localtable.parent_id')
select([parent,
lcl]).select_from(parent.join(lcl)).execute().fetchall()
finally:
testing.db.execute('DROP TABLE localtable')
def test_reflect_alt_owner_implicit(self):
meta = MetaData(testing.db)
parent = Table('parent', meta, autoload=True,
schema='test_schema')
child = Table('child', meta, autoload=True, schema='test_schema'
)
self.assert_compile(parent.join(child),
'test_schema.parent JOIN test_schema.child '
'ON test_schema.parent.id = '
'test_schema.child.parent_id')
select([parent,
child]).select_from(parent.join(child)).execute().fetchall()
def test_reflect_alt_owner_synonyms(self):
testing.db.execute('CREATE TABLE localtable (id INTEGER '
'PRIMARY KEY, parent_id INTEGER REFERENCES '
'test_schema.ptable(id))')
try:
meta = MetaData(testing.db)
lcl = Table('localtable', meta, autoload=True,
oracle_resolve_synonyms=True)
parent = meta.tables['test_schema.ptable']
self.assert_compile(parent.join(lcl),
'test_schema.ptable JOIN localtable ON '
'test_schema.ptable.id = '
'localtable.parent_id')
select([parent,
lcl]).select_from(parent.join(lcl)).execute().fetchall()
finally:
testing.db.execute('DROP TABLE localtable')
def test_reflect_remote_synonyms(self):
meta = MetaData(testing.db)
parent = Table('ptable', meta, autoload=True,
schema='test_schema',
oracle_resolve_synonyms=True)
child = Table('ctable', meta, autoload=True,
schema='test_schema',
oracle_resolve_synonyms=True)
self.assert_compile(parent.join(child),
'test_schema.ptable JOIN '
'test_schema.ctable ON test_schema.ptable.i'
'd = test_schema.ctable.parent_id')
select([parent,
child]).select_from(parent.join(child)).execute().fetchall()
class ConstraintTest(fixtures.TablesTest):
__only_on__ = 'oracle'
run_deletes = None
@classmethod
def define_tables(cls, metadata):
Table('foo', metadata, Column('id', Integer, primary_key=True))
def test_oracle_has_no_on_update_cascade(self):
bar = Table('bar', self.metadata,
Column('id', Integer, primary_key=True),
Column('foo_id', Integer,
ForeignKey('foo.id', onupdate='CASCADE')))
assert_raises(exc.SAWarning, bar.create)
bat = Table('bat', self.metadata,
Column('id', Integer, primary_key=True),
Column('foo_id', Integer),
ForeignKeyConstraint(['foo_id'], ['foo.id'],
onupdate='CASCADE'))
assert_raises(exc.SAWarning, bat.create)
class TwoPhaseTest(fixtures.TablesTest):
"""test cx_oracle two phase, which remains in a semi-broken state
so requires a carefully written test."""
__only_on__ = 'oracle+cx_oracle'
@classmethod
def define_tables(cls, metadata):
Table('datatable', metadata,
Column('id', Integer, primary_key=True),
Column('data', String(50))
)
def _connection(self):
conn = testing.db.connect()
conn.detach()
return conn
def _assert_data(self, rows):
eq_(
testing.db.scalar("select count(*) from datatable"),
rows
)
def test_twophase_prepare_false(self):
conn = self._connection()
for i in range(2):
trans = conn.begin_twophase()
conn.execute("select 1 from dual")
trans.prepare()
trans.commit()
conn.close()
self._assert_data(0)
def test_twophase_prepare_true(self):
conn = self._connection()
for i in range(2):
trans = conn.begin_twophase()
conn.execute("insert into datatable (id, data) "
"values (%s, 'somedata')" % i)
trans.prepare()
trans.commit()
conn.close()
self._assert_data(2)
def test_twophase_rollback(self):
conn = self._connection()
trans = conn.begin_twophase()
conn.execute("insert into datatable (id, data) "
"values (%s, 'somedata')" % 1)
trans.rollback()
trans = conn.begin_twophase()
conn.execute("insert into datatable (id, data) "
"values (%s, 'somedata')" % 1)
trans.prepare()
trans.commit()
conn.close()
self._assert_data(1)
def test_not_prepared(self):
conn = self._connection()
trans = conn.begin_twophase()
conn.execute("insert into datatable (id, data) "
"values (%s, 'somedata')" % 1)
trans.commit()
conn.close()
self._assert_data(1)
class DialectTypesTest(fixtures.TestBase, AssertsCompiledSQL):
__dialect__ = oracle.OracleDialect()
def test_no_clobs_for_string_params(self):
"""test that simple string params get a DBAPI type of
VARCHAR, not CLOB. This is to prevent setinputsizes
from setting up cx_oracle.CLOBs on
string-based bind params [ticket:793]."""
class FakeDBAPI(object):
def __getattr__(self, attr):
return attr
dialect = oracle.OracleDialect()
dbapi = FakeDBAPI()