How to differentiate between same field names of two tables in a select query?

Question

I have more than two tables in my database and all of them contains same field names like

table A           table B       table C
field1            field1            


        

Answer 1

You can alias the columns. e.g. Note: The syntax can vary depending on your DB.

SELECT
    a.field1 `A_Field1`,
    b.field1 `B_Field1`

SELECT
    a.field1 [A_Field1],
    b.field1 [B_Field1]

SELECT
    a.field1 AS A_Field1,
    b.field1 AS B_Field1