将一部分字符串从一列复制到另一列

Question

I've got a column with some string data that somewhere has 'T##' (## being a two digit number) I want to copy this into another column, how do I do that?

something like this: abc-T03-def -> 03

Answer 1

For Microsoft SQL Server:

update YourTable
    set NewColumn = substring(OldColumn, patindex('%T[0-9][0-9]%', OldColumn) + 1, 2)
    where patindex('%T[0-9][0-9]%', OldColumn) <> 0