#Sql将一张表的数据与选择查询结果的数据进行比较

Question

I have table 1 with A,B,C,D,E column and the result of select query after combining the table 2 and table 3 is A, D column(few values as compare to table 1) Say view 1.

Now I need to run another query if value of column A,D of table 1 is in resulted view. this new query also have where conditions and combining two tables

Could anyone please let me know the best way out?

Example Table1

A              B        C   D

Fruit       Orange      1   3

Vegetable   Onion      89   3

Fruit       Mango      83   22

Fruit       Banana      3   2

Vegetable   Beans     382   2

View1

A             B     
Fruit       Orange      
Fruit       Banana      
Vegetable   Beans   

Final output

A              B      C  D

Fruit       Orange    1  3

Fruit       Banana    3  2

Vegetable   Beans   382  2

Answer 1

SELECT
    view1.a,
    view1.b,
    table1.c,
    table1.d
FROM
    table1
    JOIN (
    --select query of your view
        SELECT
            *
        FROM
            your_view
    ) view1 ON
        table1.a = view1.a
    AND
        table1.b = view1.b;

Answer 2

All you need is the inner join between your table and view. Inner join will find the matches of column A & B in both tables.

  select table1.*
    from table 1
    inner join view1
    on table1.a = view1.a 
    and table1.b = view1.b;

Hope it helps!