Question

i have two msaccess tables

tableA

textA numA
bd    1
as    0
aa    2
cc    4

tableB

textB 
ss
aa
bd
as

how to write an sql query to add one column called numB in table B so that final table B would be

tableB ( basically fetching values from tableA )

textB  numB
ss     0      ( because ss is not there in table A )
aa     2
bd     1
as     0

Answer 1

This SQL will make a new table called tblFooC

SELECT tblFooB.TextB, nz([NumA],0) AS Expr1 INTO tblFooC
FROM tblFooB LEFT JOIN tblFooA ON tblFooB.TextB = tblFooA.TextA;

You could then delete table tblFooB and rename tblFooC to tblFooB