我们从Python开源项目中,提取了以下7个代码示例,用于说明如何使用cx_Oracle.update()。
def update(self, tables, where, vars=None, _test=False, **values): """ Update `tables` with clause `where` (interpolated using `vars`) and setting `values`. >>> db = DB(None, {}) >>> name = 'Joseph' >>> q = db.update('foo', where='name = $name', name='bob', age=2, ... created=SQLLiteral('NOW()'), vars=locals(), _test=True) >>> q <sql: "UPDATE foo SET age = 2, name = 'bob', created = NOW() WHERE name = 'Joseph'"> >>> q.query() 'UPDATE foo SET age = %s, name = %s, created = NOW() WHERE name = %s' >>> q.values() [2, 'bob', 'Joseph'] """ if vars is None: vars = {} where = self._where(where, vars) query = ( "UPDATE " + sqllist(tables) + " SET " + sqlwhere(values, ', ') + " WHERE " + where) if _test: return query db_cursor = self._db_cursor() self._db_execute(db_cursor, query) if not self.ctx.transactions: self.ctx.commit() return db_cursor.rowcount
def update(self, tables, where, vars=None, _test=False, **values): """ Update `tables` with clause `where` (interpolated using `vars`) and setting `values`. >>> db = DB(None, {}) >>> name = 'Joseph' >>> q = db.update('foo', where='name = $name', name='bob', age=2, ... created=SQLLiteral('NOW()'), vars=locals(), _test=True) >>> q <sql: "UPDATE foo SET age = 2, created = NOW(), name = 'bob' WHERE name = 'Joseph'"> >>> q.query() 'UPDATE foo SET age = %s, created = NOW(), name = %s WHERE name = %s' >>> q.values() [2, 'bob', 'Joseph'] """ if vars is None: vars = {} where = self._where(where, vars) values = sorted(values.items(), key=lambda t: t[0]) query = ( "UPDATE " + sqllist(tables) + " SET " + sqlwhere(values, ', ') + " WHERE " + where) if _test: return query db_cursor = self._db_cursor() self._db_execute(db_cursor, query) if not self.ctx.transactions: self.ctx.commit() return db_cursor.rowcount