Swap Salary|| Invalid Testcase Error - Solution!!!
May be their is problem from backend.\nJust ignore the error message and submit the solution.\nSolution will be accepted....\n\nPlease Upvote if the solution is
May be their is problem from backend.\nJust ignore the error message and submit the solution.\n**Solution will be accepted....**\n\n*Please Upvote if the solution is useful.\n\n\'\'\'\n\nUPDATE salary \nSET \nsex = CASE \nWHEN sex = \'m\' THEN \'f\' \nELSE \'m\' \nEND\n\n**OR**\n\nUPDATE salary SET sex = IF(sex = \'m\', \'f\', \'m\')\n\n```
['MySQL']