SQL SERVER – UDF – User Defined Function to Extract Only Numbers From String

Following SQL User Defined Function will extract/parse numbers from the string. CREATE FUNCTION ExtractInteger(@String VARCHAR(2000)) RETURNS VARCHAR(1000) AS BEGIN DECLARE @Count INT DECLARE @IntNumbers VARCHAR(1000) SET @Count = 0 SET @IntNumbers = '' WHILE @Count <= LEN(@String) BEGIN IF SUBSTRING(@String,@Count,1) >= '0' AND SUBSTRING(@String,@Count,1) <= '9' BEGIN SET @IntNumbers =…
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SQL SERVER – Search Text Field – CHARINDEX vs PATINDEX

We can use either CHARINDEX or PATINDEX to search in TEXT field in SQL SERVER. The CHARINDEX and PATINDEX functions return the starting position of a pattern you specify. Both functions take two arguments. With PATINDEX, you must include percent signs before and after the pattern, unless you are looking…
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