动态 SQL 查询

Question

I want to find values from one table to another table but dynamically. Ex. my table has 2 columns. One column stores the value as below. I want to create dynamic SQL that takes the data from column A and find in ColumnB.

Column1       Column2
02/28/2019    2017-07-15^2018-07-15^2019-07-15^2020-07-15 ^ 2019-02-28

Answer 1

If i understand your Logic correct then try this Query...

SELECT id,Status1 FROM tbl t1
WHERE STATUS1='D'
AND EXISTS 
( 
SELECT id,Status2 FROM tbl t2 WHERE t1.id=t2.id AND t1.Status1=t2.Status2
)

Note: - Suppose, you have a have Called Tbl, it Contains Column(id,Status1,Status2)

then you have to select (Status1) from tbl t1 and check with same table with Column (Status2) checking with exists Query...

So,You can check Status1 Column value with Status2 Column in same table...