How can i display all columns from one table & only one column from the other table using joins?

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How can i display all columns from one table & only one column from the other table using joins?
for example:
i have 2 tables
Table A
column name:
pk (integer)
description (varchar)
type (varchar)

Table B
Column name:
pk (integer)
descr (varchar)
type (varchar)
fk (int) "this fk is related to Table A's pk"

How can i get the output as:
pk--> from table A
description--> from table A
type--> from table A
fk--> from table B

Posted 15-Feb-11 23:45pm

Nischal Bhatt

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4 solutions

Solution 2

I only speak T-SQL, but I'd write it as:

SQL

select TableA.*, TableB.fk from TableA
inner join TableB on TableA.pk = TableB.fk

Posted 15-Feb-11 23:51pm

jim lahey

Solution 3

You canuse something like:

SQL

select a.pk, a.description, a.type, b.fk from table_a as a inner join table_b as b on b.pk = a.pk;

Posted 16-Feb-11 0:00am

Om Prakash Pant

Comments

Om Prakash Pant 16-Feb-11 6:02am

for more examples on join, please check the following link:
http://www.plus2net.com/sql_tutorial/sql_inner_join.php

Nischal Bhatt 16-Feb-11 6:14am

Thank you for sharing your knowledge Sir Appreciate it, & i'll keep the link in my bookmarks for reference.

Solution 4

I really love left or right join because these are really faster than inner joins. Answering your question by following your requirements EXACTLY:

1. Displaying all columns from one table and one column from other table:

--B.pk in case that you want the 'pk' column from B table:
SELECT A.*, B.pk FROM A LEFT JOIN B ON A.pk=B.fk;

2. pk-> from table A, description-> from table A, type-> from table A, fk-> from table B:

SELECT A.pk, A.description, A.type, B.fk FROM A LEFT JOIN B ON A.pk=B.fk;

Greetings :cool:

Posted 28-Feb-11 5:32am

pancho2413

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Sandeep Mewara · Accepted Answer · 2011-02-15T23:49:00

Solution 1

Try:

SQL

SELECT 
  tableA.PK, tableA.Description, tableA.type, tableB.pk
FROm
  tableA
INNER JOIN tableB ON tableA.PK = tableB.FK

Posted 15-Feb-11 23:49pm

Sandeep Mewara

Comments

Nischal Bhatt 16-Feb-11 6:02am

I used this query in MySQL & it works like a charm.
Thanks Sandeep appreciate it.