从 informatica 中的字符串中删除字符

Question

I have the following string values.

string 1 = test123 string 2 = stri567

now i need to remove 123,567 from the string. which means i need only first four character from the strings.(test,stri)

Answer 1

Have you tried reg replace to replace all numbers from a string -

REG_REPLACE( inp_col, '[0-9]','') 

Answer 2

If you need first four characters from the column then use substring

SUBSTR(column_name, 0, 4)

Please make sure that you need first four digits or just strings from the columns. In case if you need strings from the values, please use Koushik Roy's solution