Convert expression into LOWER / UPPER case in sql:
You can make use of lower() function to convert expression in lower case
SELECT LOWER(FIRST_NAME_COLUMNNAME)
FROM TABLE
You can make use of upper() function to convert expression in lower case
SELECT UPPER(FIRST_NAME_COLUMNNAME)
FROM TABLE

Prashanth Kumar ThadakaPosted Jun 20, 2021, 8:19 AM
You can make use of upper() function to convert expression in upper case, not in lower case, please update the mistake.