Question

My skills with SQL are simple, so i’m not sure how to do this.. Here it goes.

Lets consider this.

Table A
ID              Name              LastNameID
1               Jonh              23
2               Helen             19

Table B
ID              LastName
23              Bauer
19              Summers

.

SELECT ID Name LastNameID FROM TableA

How can i add another Select inside that one that will return the LastName from Table B based on the LastNameID in Table A.

In this case i usually use a simple function with the Programming language that i use to do that for each returned Row.

But i think its time to do that with SQL alone.

Any help is appreciated.

Answer 1

You just need to join the tables using the LastNameId field:

SELECT TableA.[Name] AS FirstName, TableB.LastName
FROM TableA 
  INNER JOIN TableB ON TableA.LastNameId = TableB.LastNameId