postgresql create procedure 返回数据集 post返回数据类型 Http Header里的Content-Type一般有这三种: application/x-www-form-urlencoded:数据被编码为名称/值对。这是标准的编码格式。 multipart/form-data: 数据被编码为一条消息,页上的每个控件对应消息中的一个部分。 text/plain: 数据以纯文本形式(text/json/xm...
db11=#CREATEPROCEDUREtest_proc() LANGUAGEplpgsql AS$$ BEGIN CREATETABLEa(aidint); CREATETABLEb(bidint); COMMIT; CREATETABLEc(cidint); ROLLBACK; END; $$; CREATEPROCEDURE The first thing to notice here is that there is a COMMIT inside the procedure. In classical PostgreSQL functions this is...
procedureName)));if(!pg_proc_ownercheck(oldproc->oid, proowner))aclcheck_error(ACLCHECK_NOT_OWNER, OBJECT_FUNCTION, procedureName);/* Not okay to change routine kind *///不能改变类型(如原来是proc,那么创建同名func是不行的)if(oldproc->prokind != prokind)ereport(ERROR, (errcode(ERRCODE...
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SQL is PostgreSQL's native language and works best with the optimizer.A stored procedure is created with the key words CREATE PROCEDURE. Alternatively, use CREATE OR REPLACE PROCEDURE to either create a new procedure or replace a procedure with the same name....
简介:AnalyticDB PostgreSQL 7.0 新增了存储过程功能的支持,让用户在使用ADB PG时能够更方便高效地开发业务,并能够更好地兼容Oracle等传统数仓的业务。 背景 在ADB PG6中,函数(Function)可以实现大部分的存储过程功能(SQL stored procedures),我们通常建议用户使用函数来实现存储过程业务,但是通过此方法改造存储过程给用户...
While executing this procedure first time: select creat_table(); table gets created but when I execute it again I get the below error: ERROR: relation "test" already exists CONTEXT: SQL statement "create table test ( the_id int not null, name text )" PL/pgSQL function create_table(...
The following example uses the string test. $test$ my statement $test$ This syntax is also useful for nested dollar quoting. For more information about dollar quoting, see "Dollar-quoted String Constants" under Lexical Structure in the PostgreSQL documentation. procedure_body A set of valid PL...
● EXECUTE PROCEDURE is followed by the trigger function that is to be executed when a trigger is fired. Example: Let’s consider an example of the database table possessing the status of the projects being developed in a software house. Let's suppose the query for the table is as follows...
PostgreSQL , CREATE PROCEDURE , CALL , 增强 , 11 背景 PostgreSQL一直以来都是通过create function来创建函数和存储过程(return void),通过select或者perform(plpgsql内部调用函数)来调用函数。 通过inline code来模拟类似procedure的用法: do language plpgsql $$ declare -- ... begin -- ... end; $$; ...