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Asked: 2026-05-12T06:56:51+00:00

I have around a few thousand rows with which contain 3 digit numbers starting

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I have around a few thousand rows with which contain 3 digit numbers starting with 100 and ranging to 199 which i need to prefix with 0. There are also thousands of other numbers 4 digit numbers as well which i don’t want to change.

I need find all the 3 digit numbers in the range and prefix only those ranging from 100 -199 with a 0 so as they are 4 digits eg 100 > 0100 , 104 > 0104 and so on.
Also these numbers may step eg 110 next is 124.

Is there a way I can do this using SQL? as i don’t fancy changing these manually!

Many Thanks

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1 Answer

  1. Editorial Team

    This is best done with a programming language. That said, here’s a SQL query that will update all the existing numbers:

    UPDATE tableName SET fieldName = right(concat('0000',fieldName), 4) WHERE length(fieldName) < 4
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