DROPFUNCTION[IFEXISTS] 函数名 [([参数模式] [参数名] 参数类型)] [CASCADE|RESTRICT] DROPFUNCTION:删除一个函数 IFEXISTS: 如果函数不存在则不抛出错误而是报告消息 CASCADE :自动删除依赖于该函数的对象(如:触发器,操作符),然后删除所有依赖于该对象的对象 RESTRICT :如果有任何对象依赖于该函数则拒绝删除,默...
DROP FUNCTIONDROP FUNCTION — 移除一个函数大纲DROP FUNCTION [ IF EXISTS ] name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] [, ...] [ CASCADE | RESTRI… 阅读全文 五十九、DROP DOMAIN DROP DOMAINDROP DOMAIN — 移除一个域大纲DROP DOMAIN [ IF EXISTS ] name [, .....
drop function [if exists] function1, function2, ...; PostgreSQL Drop Function examples The following statement uses the create function statement to define a function that returns a set of films including film_id, title, and actor: create or replace function get_film_actors() returns setof ...
1.创建一个函数function1 --FUNCTION: public.function1(character varying, integer)--DROP FUNCTION public.function1(character varying, integer);CREATEORREPLACEFUNCTIONpublic.function1( useridlcharactervarying, groupidlinteger)RETURNSTABLE(vehicle_idinteger) LANGUAGE'plpgsql'COST100VOLATILE ROWS1000AS$BODY$BE...
[PostgreSql]PostgreSql调⽤函数及⽤IFEXISTS判断表是否存在1.创建⼀个函数function1 -- FUNCTION: public.function1(character varying, integer)-- DROP FUNCTION public.function1(character varying, integer);CREATE OR REPLACE FUNCTION public.function1(useridl character varying,groupidl integer)RETURNS TABLE...
DROP ROLE [ IF EXISTS ] _name_ [, ...] DROP RULE 删除一个重写规则。 DROP RULE name ON relation [ CASCADE | RESTRICT ] DROP SCHEMA 删除一个模式。 DROP SCHEMA name [, ...] [ CASCADE | RESTRICT ] DROP SEQUENCE 删除一个序列。
drop function if exists str_to_tsquery(text,boolean); create or replace function str_to_tsquery(text,boolean default true) returns tsquery as $$ declare v_count integer; v_txt text; v_txts text[]; v_result tsquery; begin v_txt := clear_punctuation($1); --数组大小为字符数量-1 v_co...
DROP ROLE [ IF EXISTS ] _name_ [, ...]DROP RULE删除一个重写规则。DROP RULE name ON relation [ CASCADE | RESTRICT ]DROP SCHEMA删除一个模式。DROP SCHEMA name [, ...] [ CASCADE | RESTRICT ]DROP SEQUENCE删除一个序列。DROP SEQUENCE name [, ...] [ CASCADE | RESTRICT ]...
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_getdbpath]') and xtype in (N'FN', N'IF', N'TF')) drop function [dbo].[f_getdbpath] GO create function f_getdbpath(@dbname sysname) returns nvarchar(260) ...
drop table if exists ap.fact_ship_20220910; select to_regclass('fact_ship') ; --是否存在此表,不存在返回null,存在返回表名 -- 2、日期 select to_char(date_trunc('day',now())+'-1 day','yyyymmdd'); -- 3、查询模式下的表 select tablename ...