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The DROP COLUMN IF EXISTS clause of the ALTER TABLE statement is used to drop a column only only if it already exist in the table. In this short video, learn how to access MySQL via the command line and display all databases using a simple command! Drop If Exists Demo

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For my student (Lab 4) HOW TO FIND COLUMN IF EXISTS OR NOT IN THE DATABASE how to fix #mysql error #1553? * Let's say foreign key didn't have an index then if a new record is inserted then the foreign key

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