检查指定游标是否存在的函数.sql

CREATE FUNCTION f_CursorExists(@CursorName sysname)
RETURNS TABLE
AS
RETURN(
SELECT * FROM(
SELECT Name=@CursorName,
Type=CAST('LOCAL' as varchar(8)),
IsExists=CAST(CASE CURSOR_STATUS('LOCAL',@CursorName)
WHEN -3 THEN 0 ELSE 1 END as bit)
UNION ALL
SELECT @CursorName,'GLOBAL',
CASE CURSOR_STATUS('GLOBAL',@CursorName) WHEN -3 THEN 0 ELSE 1 END
UNION ALL
SELECT @CursorName,'VARIABLE',
CASE CURSOR_STATUS('VARIABLE',@CursorName) WHEN -3 THEN 0 ELSE 1 END
)a WHERE IsExists=1)
GO