insert into t1 (c1, c2, c3, c4) values (-1, 0, 1, "2.1"); insert into t1 (c1, c2, c3, c4) values (-2, 0, 2.1, "2.9"); insert into t1 (c1, c2, c3, c4) values (-2, 0, 2 ...
CHARINDEX (SQL Server) and SUBSTRING_INDEX (MySQL) are functions used to find the position of a substring within a string. They help locate specific parts of a text based on content. CHARINDEX returns ...
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