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Tip of the Day
Language: SQL Server
Expertise: Beginner
Mar 24, 1997

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Pattern Matching

Question:
How can I use SQL to specify a query like the example below:
    select * from mytable where column like 'a[bc]'
This should match both "ab" and "ac" but not "ad."

Answer:
SQL does not have strong pattern matching facilities. For the example you've provided, you'll have to construct the query using the IN predicate:

    SELECT * FROM MyTable 
        WHERE col IN (ab, ac);
If your list is extensive, you might want to use a subquery:
    SELECT * FROM MyTable 
        WHERE col IN 
            (SELECT value FROM ValueTable);
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