A cursor references a result set. The REF CURSOR allows you to pass a cursor reference from one PL/SQL program unit to another. In other words, it allows you to create a variable that will receive a cursor and enable access to its result set,but in this blog I am giving examples for...
See: Oracle Database SQL Language Reference for SELECT statement syntax cursor_parameter_dec A cursor parameter declaration. parameter The name of the formal cursor parameter that you are declaring. This name can appear anywhere in select_statement that a constant can appear. IN Whether or not...
2.1.2.245 T572, Multiset-returning external SQL-invoked functions 2.1.2.246 T581, Regular expression substring function 2.1.2.247 T601, Local cursor references 2.1.2.248 T611, Elementary OLAP operations 2.1.2.249 T612, Advanced OLAP operations 2.1.2.250 T613, Sampling 2.1.2.251 T614, NTIL...
Figure 9 close_cursor::= Attributes Cursor attributes are used to control program procedures or learn about program status. When a DML statement is executed, the PL/SQL opens a built-in cursor and processes its result. A cursor is a memory segment for maintaining query results. It is opened...
# MDEV-10581 sql_mode=ORACLE: Explicit cursor FOR LOOP # CREATE PROCEDURE p1 AS CURSOR cur0 IS SELECT 10 AS a, 'b0' AS b; CURSOR cur1 IS SELECT 10 AS a, 'b0' AS b; CURSOR cur2 IS SELECT 10 AS a, 'b0' AS b; BEGIN FOR rec1 IN cur1 LOOP SELECT rec1.a, rec1.b; rec...
Use explicit cursor attributes to obtain status infromation about a cursor. 获取游标信息属性,使用方法:在属性前面添加游标名称即可. %ISOPEN Attribute You can fetch rows only when the cursor is open Use the %ISOPEN cursor attribute before performing a fetch to test whether the cursor is open. ...
__cursorNotify_IntImpl__ __defaultMark_IntImpl__ __delayActive_IntImpl__ __delete_IntImpl__ __deleted_IntImpl__ __deleteMarked_IntImpl__ __deleting_IntImpl__ __displayOption_IntImpl__ __displayOptionHandlers_IntImpl__ __executeCancelableEvent_IntImpl__ __executeCreatingE...
SQL 型 V4.2.2 参考指南 配置项和系统变量 系统变量 Global 系统变量 explicit_defaults_for_timestamp 更新时间:2024-01-16 09:32:10 功能描述 explicit_defaults_for_timestamp用于指定 timestamp 数据类型在处理默认值和空值时是否启用非标准行为。
(values), *args, **kwargs) File "apps/frappe/frappe/database/database.py", line 218, in sql self._cursor.execute(query, values) psycopg2.errors.UndefinedFunction: function if(boolean, numeric, unknown) does not exist LINE 1: select t2.item_code, t2.item_name,SUM(IF(t1.transaction_...
SQL 型 V4.2.4 参考指南 配置项和系统变量 系统变量 Global 系统变量 explicit_defaults_for_timestamp 更新时间:2024-07-11 00:04:57 编辑 功能描述 explicit_defaults_for_timestamp用于指定 timestamp 数据类型在处理默认值和空值时是否启用非标准行为。