/SQL/Update table from another table mysql

Update table from another table mysql

Update left join mysql

UPDATE  t1
LEFT JOIN
        t2
ON      t2.id = t1.id
SET     t1.col1 = newvalue
WHERE   t2.id IS NULL

Source: stackoverflow.com

Update table from another table mysql

UPDATE t1
SET t1.COL1 = t2.COL1, t1.COL2 = t2.COL2
FROM MY_TABLE AS t1
INNER JOIN MY_OTHER_TABLE AS t2 ON t1.COLID = t2.ID
WHERE t1.COL3 = 'OK';

Mysql update field from one table to another

UPDATE MY_TABLE AS t1
INNER JOIN MY_OTHER_TABLE AS t2 ON t1.COLID = t2.COLID
SET t1.COL1 = t2.COL1, t1.COL2 = t2.COL2
WHERE t1.COL3 = 'OK';

Mysql update table from select on another table

UPDATE TableB 
SET TableB.value = (
    SELECT TableA.value 
    FROM TableA
    WHERE TableA.name = TableB.name
);

Mysql update table from another table

UPDATE tableB
INNER JOIN tableA ON tableB.name = tableA.name
SET tableB.value = IF(tableA.value > 0, tableA.value, tableB.value)
WHERE tableA.name = 'Joe'

Source: stackoverflow.com

Similar codes

0 vote361 views1 answer
Postgres week number
SQL
0 vote362 views1 answer
Mysql join table with a text columns with ids splited by char
SQL
2 votes352 views1 answer
Pandas to sql index
SQL
0 vote336 views1 answer
Sql if else in select
SQL
1 vote361 views3 answers
How to get date in sql
SQL
3 votes380 views2 answers
Mysql update row
SQL
0 vote329 views1 answer
Insert to first table if field A equals field B from a second table using sql
SQL
4 votes346 views2 answers
SELECT table_name FROM user_tables;
SQL
1 vote344 views1 answer
Sqlite3 read only
SQL
0 vote344 views1 answer
Sql delete dastabase
SQL