Markus Bertheau wrote:
Ð ÐÑÐ, 25.07.2004, Ð 15:18, Keith Gallant ÐÐÑÐÑ:
Hello
I am wondering if it is possible to use a SINGLE LIKE statement for a
selection from a list.
For example: If I want to return all results that a phrase starts with a
number, can I make a call similar to the following:
SELECT * FROM table WHERE phrase LIKE
{'0%','1%','2%','3%','4%','5%','6%','7%','8%','9%'};
If not is there an easier way than having to call this:
SELECT * FROM table WHERE phrase LIKE '0%' OR phrase LIKE '1%' OR phrase
LIKE '2%' OR phrase LIKE '3%' OR phrase LIKE '4%' OR phrase LIKE '5%' OR
phrase LIKE '6%' OR phrase LIKE '7%' OR phrase LIKE '8%' OR phrase LIKE
'9%';
WHERE SUBSTRING(phrase FROM 1 FOR 1) IN ('0', '1', ....)
Better yet:
SELECT * FROM table WHERE phrase ~ '^[0-9]';
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
