Remove leading zero and white space – SQL SERVER

— Create sample table
CREATE TABLE Table1 (Col1 VARCHAR(100))
INSERT INTO Table1 (Col1)
SELECT ‘0001’
UNION ALL
SELECT ‘000100’
UNION ALL
SELECT ‘100100’
UNION ALL
SELECT ‘000 0001’
UNION ALL
SELECT ‘00.001’
UNION ALL
SELECT ‘01.001’
GO
— Original data
SELECT *
FROM Table1
GO

-- Remove leading zeros
SELECT
SUBSTRING(Col1, PATINDEX('%[^0 ]%', Col1 + ' '), LEN(Col1))
FROM Table1
GO
-- Clean up
DROP TABLE Table1
GO

Here is the resultset of above script. It will remove any leading zero or space and will display the number accordingly.

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