execute immediate 'DROP FUNCTION ' || ObjName; end if; end if; if upper(ObjType) = 'TRIGGER' then select count(*) into v_counter from User_Triggers where TRIGGER_NAME = upper(ObjName); if v_counter > 0 then execute immediate 'DROP TRIGGER ' || ObjName; end if; end if; if up...
if exists(select*fromdbo.sysobjectswhereid=object_id(N'[dbo].[函数名]')andxtypein(N'FN',N'IF',N'TF')) dropfunction[dbo].[函数名] GO 1. 2. 3. 存储过程: if exists(select*fromdbo.sysobjectswhereid=object_id(N'[dbo].[存储过程名]')andOBJECTPROPERTY(id,N'IsProcedure')=1) dropp...
mysql>set global log_bin_trust_function_creators=1; ##true也可以 2. Mysql没有 create or replace function Oracle 下这种是可以的, 但是Mysql只有 create or replace procedure 这里要创建函数时实现相同效果,可以这么写: drop function if exists XXX 3.不允许直接在过程或函数中使用聚合函数,如max highlight...
Set global log_bin_trust_function_creators=1;-- 解决自定义函数报错:ERROR 1418-This function has none of DETERMINISTIC DROP FUNCTION IF EXISTS currval; DELIMITER $ CREATE FUNCTION currval (seq_name VARCHAR(50)) RETURNS INTEGER CONTAINS SQL BEGIN DECLARE value INTEGER; SET value = 0; SELECT curr...
##创建序列CREATETABLEIFNOTEXISTS`sequence`(`name`VARCHAR(50)NOTNULL,`current_value`INT(11)NOTNULL,`increment`INT(11)NOTNULLDEFAULT'1'); 4.2实现currval 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ##当前值DROPFUNCTIONIFEXISTS`currval`;CREATEFUNCTION`currval`(seq_nameVARCHAR(50))RETURNSINT...
drop function LinxRunCMD 执行命令 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select LinxRunCMD('id') from dual 2849daa3c5c2ade13eb918a3ca0ad502.png dbms_java_test.funcall() •影响版本:10g R2, 11g R1, 11g R2•权限:Java Permissions 代码语言:javascript 代码运行次数:0 运行 AI代...
--drop_if_exists : Drop the object before creation if it exists. --delete clause : Set the DELETE clause to apply to the Oracle query to be applied before importing data. Can be used multiple time. --oracle_fdw_prefetch: Set the oracle_fdw prefetch value. Larger values generally result...
drop table if exists stud; create table stud (name string, area string, course string, score int); 2)向原数据表中插入数据 hive(gmall)> insert into table stud values('zhang3','bj','math',88); insert into table stud values('li4','bj','math',99); ...
DROP TABLE obsolete_products_errors;DROP TABLE pipe_through;DROP FUNCTION obsolete_products;DROP FUNCTION obsolete_products_pipe;DROP FUNCTION obsolete_products_dml;返回主题返回主题列表 使用同步更改数据捕获 (CDC) 捕获并使用增量式源更改 数据仓库涉及从一个或多个源数据库中提取关系数据,然后将其传输到数据...
The lag() function (prev column) turns into a first_value() function that looks at the row preceding the current row in the partition (rows between 1 preceding and 1 preceding). However it first has to count over the same clause to see if a row exists, and then either report its ...