搜索varchar列，仅适用于匹配的数值

Question

I have a column ( PRODUCTNUMBER ) of type VARCHAR that can contain data like this:

SEC123456
SEC-123456
12-35-46
123456

Is it's possible to run a SQL Server query where I only send '123456' as my search data and will get a match for all of the rows that PRODUCTNUMBER has this data in it (even if PRODUCTNUMBER data contain characters like 'SEC123456' )?

Answer 1

First Create Function to Extract Numeric Value

CREATE FUNCTION dbo.udf_GetNumeric
(@strAlphaNumeric VARCHAR(256))
RETURNS VARCHAR(256)
AS
BEGIN
DECLARE @intAlpha INT
SET @intAlpha = PATINDEX('%[^0-9]%', @strAlphaNumeric)
BEGIN
WHILE @intAlpha > 0
BEGIN
SET @strAlphaNumeric = STUFF(@strAlphaNumeric, @intAlpha, 1, '' )
SET @intAlpha = PATINDEX('%[^0-9]%', @strAlphaNumeric )
END
END
RETURN ISNULL(@strAlphaNumeric,0)
END
GO

then

select * from TableName where dbo.udf_GetNumeric(PRODUCTNUMBER) like '%123456%'

try this

Answer 2

For the case of contiguous characters:

select * from t where productnumber like '%123456%'

would work. If it's just '-' in the data you can use replace(productnumber, '-', ''). But if it could be many other non-numeric characters, you want something like:

SQL to return field with non-numeric characters removed in MySQL