SQL Like

LIKE is another keyword that is used in the WHERE clause. Basically, LIKE allows you to do a search based on a pattern rather than specifying exactly what is desired (as in IN) or spell out a range (as in BETWEEN). The syntax is as follows:

SELECT “column_name”
FROM “table_name”
WHERE “column_name” LIKE {PATTERN}

{PATTERN} often consists of wildcards. We saw several examples of wildcard matching in the previous section. Below we use an example to see how wildcard is used in conjunction with LIKE:

Table Store_Information

store_name Sales Date
LOS ANGELES $1500 Jan-05-1999
SAN DIEGO $250 Jan-07-1999
SAN FRANCISCO $300 Jan-08-1999
BOSTON $700 Jan-08-1999

 

We want to find all stores whose name contains ‘AN’. To do so, we key in,

SELECT *
FROM Store_Information
WHERE store_name LIKE ‘%AN%’

Result:

store_name Sales Date
LOS ANGELES $1500 Jan-05-1999
SAN DIEGO $250 Jan-07-1999
SAN FRANCISCO $300 Jan-08-1999
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