PATINDEX
Declare @Temp Table(Data VarChar(20)) Insert Into @Temp Values('BTA200') Insert Into @Temp Values('BTA50') Insert Into @Temp Values('BTA030') Insert Into @Temp Values('BTA') Insert Into @Temp Values('123') Insert Into @Temp Values('X999') Select Data, Left(Data, PatIndex('%[0-9]%', Data + '1') - 1) From @Temp
var
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