如何查询两个 SQL 表并过滤该数据

Question

I'm trying to gather data from two tables like this

SELECT table1.NAME, table2.NAME
FROM table1, table2
WHERE table1.NAME = table2.NAME

then i want to be able to query that output data with a new SQL statement is there a way of doing that?

Answer 1

Sure, you can use a CTE:

with cte as
(SELECT table1.NAME, table2.NAME
FROM table1, table2
WHERE table1.NAME = table2.NAME)
select * from cte --here goes your statement

Please note that you should be using the modern explicit join syntax instead of the old one you're using:

with cte as
(SELECT table1.NAME, table2.NAME
FROM table1 inner join table2
on table1.NAME = table2.NAME)
select * from cte --here goes your statement