how to query without duplicate rows in sql
SELECT DISTINCT col1,col2... FROM table_name where Condition;how to query without duplicate rows in sql
SELECT DISTINCT col1,col2... FROM table_name where Condition;sql delete duplicate rows but keep one
# Step 1: Copy distinct values to temporary table
CREATE TEMPORARY TABLE tmp_user (
SELECT id, name
FROM user
GROUP BY name
);
# Step 2: Remove all rows from original table
DELETE FROM user;
# Step 3: Remove all rows from original table
INSERT INTO user (SELECT * FROM tmp_user);
# Step 4: Remove temporary table
DROP TABLE tmp_user;Copyright © 2021 Codeinu
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