在PL/pgSQL内部执行INSERT之后获取默认的序列值
问题描述：
我有一张桌子.我在plpgsql中编写了一个函数，可以在此表中插入一行:
I have a table. I wrote a function in plpgsql that inserts a row into this table:
INSERT INTO simpleTalbe (name,money) values('momo',1000) ;
此表具有名为id的serial字段.在插入行后，我想在函数中知道新行收到的ID.
This table has serial field called id. I want in the function after I insert the row to know the id that the new row received.
我想使用:
select nextval('serial');
在插入之前，有更好的解决方案吗?
before the insert, is there a better solution?
答
使用 _my_id_variable必须使用匹配的数据类型声明.
_my_id_variable must have been declared with a matching data type.
相关:
根据您打算如何处理它，通常使用纯SQL会有更好的解决方案.例子:
Depending on what you plan to do with it, there is often a better solution with pure SQL. Examples:
- Combining INSERT statements in a data-modifying CTE with a CASE expression
- PostgreSQL multi INSERT...RETURNING with multiple columns