I have two separate data tables.
This is Table1
:
Customer Name Address 1 City State Zip
ACME COMPANY 1 Street Road Maspeth NY 11777
This is Table2
:
Customer Active Account New Contact
ACME Y John Smith
I am running a query using the JOIN
where only include rows where the joined fields from both tables are equal .
I am joining Customer Name
from Table1
and Customer
from Table2
. Obviously no match. What I am trying to do is show results where the first 4 characters match in each table so I get a result or match. Is this possible using LIKE
or LEFT
?
Seems like this should work:
Select *
From Table1, Table2
Where Table1.CustomerName Like Cat('%',Trim(Table2.CustomerName),'%')
It probably is, though this might depend on the Database you are using. For example, in Microsoft SQL, it would work to use somthing like this:
SELECT *
FROM [Table1] INNER JOIN [Table2]
ON LEFT([Table1].[Customer Name],4) = LEFT([Table2].[Customer],4)
Syntax may be different if using other RDBMS. What are you trying this on?
Yes, that's possible. But I doubt, that every name in table 2 only has 4 letters, so here's a solution where the name in table2 is the beginning of the name in table1.
Concat the string with a %
. It's a placeholder/wildcard for "anything or nothing".
SELECT
*
FROM
Table1
INNER JOIN Table2 ON Table1.CustomerName LIKE CONCAT(Table2.Customer, '%');
Concatenating of strings may work differently between DBMS.
If you are only trying to match first four Characters you can use following :
SELECT --your columns
FROM Table1 T1
JOIN Table T2
ON
SUBSTRING ( T1.CustomerName ,1, 4) = SUBSTRING ( T2.Customer ,1, 4)
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