如何根据另一个 table 中的条件从一个 table 创建一个 select 的存储过程

Question

例如，我有 2 个表。

Table A 有 Setting/isActive

Table B 有 Name/Ages/City

所以我只想在 isActive = 1 for Setting ='GetThis' in Table A

时从 B 检索记录

类似

if 'GetThis' = 1 from table A
then get records from table B

Answer 1

不知道您使用的是哪个 DBMS，但请查看命令 IF EXISTS

Answer 2

如果它应该从table B 获取所有记录，你可以试试这个；

Select b.name, b.ages, b.city from table_B b, table_A a where a.isActive = 1 and a.Setting ='GetThis'

Answer 3

我最后做了这个

CREATE PROCEDURE GetAllRecords
@isActive BIT
SET @isActive = (Select isActive FROM TableA WHERE Setting = 'GetThis')

AS

IF @isActive = 1
BEGIN

SELECT * FROM TableB

END
GO;

如何根据另一个 table 中的条件从一个 table 创建一个 select 的存储过程

How do I create a stored procedure that select from one table based on condition in another table

sql

ssms