I have a script to create database link as following. But the script encounter errorORA-00933: SQL command not properly ended
CREATE DATABASE LINK "MIG_61_TO_74"
CONNECT TO "ABC_DEV" IDENTIFIED BY 'ABC_DEV'
USING 'info001:1521/orcl';
Perhaps the are apostrophies confusing the parser. This example by Oracle doesn't include them, try it that way.
CREATE DATABASE LINK MIG_61_TO_74
CONNECT TO ABC_DEV IDENTIFIED BY "ABC_DEV"
USING 'info001:1521/orcl';