MySQL UPDATE Error: Why 'Unknown Column in 'field list''?

MySQL UPDATE query error: Unknown column in field list

When executing an UPDATE query in MySQL, you may encounter error code #1054, indicating an unknown column in the field list. This usually happens when the query syntax is incorrect.

Question:

The following UPDATE query triggers this error:

UPDATE MASTER_USER_PROFILE, TRAN_USER_BRANCH
SET MASTER_USER_PROFILE.fellow=`y`
WHERE MASTER_USER_PROFILE.USER_ID = TRAN_USER_BRANCH.USER_ID
AND TRAN_USER_BRANCH.BRANCH_ID = 17

Solution:

The solution lies in using quotes for the value assigned to the fellow column. In MySQL, backticks (`) are used to enclose column names, and double or single quotes (' or ") are used to enclose values. By using single or double quotes around the value 'y' in the query, This error can be solved

.

Corrected query:

UPDATE MASTER_USER_PROFILE, TRAN_USER_BRANCH
SET MASTER_USER_PROFILE.fellow='y'
WHERE MASTER_USER_PROFILE.USER_ID = TRAN_USER_BRANCH.USER_ID
AND TRAN_USER_BRANCH.BRANCH_ID = 17

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