postgresql创建function使两个表互动 create function f_m_stockcurrent_post(character varying(32)) RETURNS integer as $$ declare rec record; begin update stockcurrent set units=units+(select handqty from shipmentinline sp inner join stockcurr
postgresql创建function使两个表互动
create function f_m_stockcurrent_post(character varying(32))
RETURNS integer
as
$$
declare
rec record;
begin
update stockcurrent set units=units+(select handqty from shipmentinline sp inner join stockcurrent st on st.product=sp.product where sp.documentno=$1);
for rec in (select sp.location,sp.handqty,sp.product from shipmentinline sp where sp.documentno=sp_documentno and not exists(select handqty from shipmentinline sp inner join stockcurrent st on st.product=sp.product where sp.documentno=)) loop
insert into stockcurrent(location,product,attributesetinstance_id,units)values(rec.location,rec.product,null,rec.handqty);
end loop;
end;
$$
language 'plpgsql' VOLATILE;
数据库中检验函数是否生效
select f_m_stockcurrent_post('123');
每个人都需要一台速度更快、更稳定的 PC。随着时间的推移,垃圾文件、旧注册表数据和不必要的后台进程会占用资源并降低性能。幸运的是,许多工具可以让 Windows 保持平稳运行。
C++高性能并发应用_C++如何开发性能关键应用
Java AI集成Deep Java Library_Java怎么集成AI模型部署
Golang后端API开发_Golang如何高效开发后端和API
Python异步并发改进_Python异步编程有哪些新改进
C++系统编程内存管理_C++系统编程怎么与Rust竞争内存安全
Java GraalVM原生镜像构建_Java怎么用GraalVM构建高效原生镜像
Python FastAPI异步API开发_Python怎么用FastAPI构建异步API
C++现代C++20/23/26特性_现代C++有哪些新标准特性如modules和coroutines
Copyright 2014-2025 https://www.php.cn/ All Rights Reserved | php.cn | 湘ICP备2023035733号