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CategoryComputingTips > SQLCompTips | CategoryComputingTips > SQLComp''''''Tips |
CategoryComputingTips > SQLCompTips
SQL Tips
This is more a collection of recipes than tips I guess.
Using substring and a sub select
SELECT COUNT(substring),substring FROM ( SELECT SUBSTRING(domainname FROM POSITION('.' in domainname)) FROM orders WHERE type=1) AS foo GROUP BY substring;
Group and count domain extensions.