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Find a matching string

I need a SQL to find a matching string between two table joins

TableA
----------

12345
54321
98989
98080

TableB
---------
+112345
+254321
+398989
+498080
+809009
+687698

Results
----------

+112345
+254321
+398989
+498080

How can I do that?

Thanks,

~Sve
0
sventhan
Asked:
sventhan
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3 Solutions
 
CluskittCommented:
SELECT FieldB FROM TableA INNER JOIN TableB ON FieldB LIKE '%' + FieldA + '%'
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Ephraim WangoyaCommented:

Join the tables or use IN keyword

select field1 from table1
inner join table2 on table2.field1 = table1.field1

or

select field1 from table1
where field1 in 9select field1 from table2)
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jimyXCommented:
Select * from TableB TB where TB.Col1 like '%'+(select TA.Col1 from TableA TA)

or to specify the preceding number of characters:

Select * from TableB TB where TB.Col1 like '__'+(select TA.Col1 from TableA TA)
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sventhanAuthor Commented:
@ ewangoya

There is no matching rows between the tables.


@Cluskitt

Yours running for long time. I've 40 million rows in the table

@ jimyX

Getting an Error saying that subquery returns more than 1 row. The Data I've posted is just a sample

Thanks to you all.
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CluskittCommented:
You'll have that many if you have many similar fields. For example, if TableA has the value '12345' and TableB has the values: '+112345', '+212345', '-112345', it will create 3 rows.
Also, if you have 100 values in TableB with the same field, it will create 100 rows with the same value. Also, keep in mind that joining on String fields that aren't indexed is very slow.

If all you want to match are the last 5, then you'd be better off with:

SELECT FieldB FROM TableA INNER JOIN TableB ON FieldA = RIGHT(FieldB, 5)

If you want to remove duplicates_

SELECT FieldB FROM TableA INNER JOIN (SELECT DISTINCT FieldB FROM TableB) TableB ON FieldA = RIGHT(FieldB, 5)
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Ephraim WangoyaCommented:

Yes, my query will not work since its looking for an exact march
I missed a point in your question
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sventhanAuthor Commented:
Thanks experts. I've get the idea.
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