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Substring
PostgreSQL Character cutting :substring Function introduction
As the most powerful open source database ,Postgresql( hereinafter referred to as pg) Character processing is also the most powerful , First of al...
2019-09-16 17:11
views 59
mysql Of substring_index Field interception
SELECT substring_index(data_value, ' Organization type ', 1),data_value FROM `test` where data_value like '% Organization type %';SELECT CONCAT(&...
2018-11-10 17:32
views 55
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