/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 vote190 views1 answer
Suse status MySQL
SQL
7 votes181 views2 answers
Show size database mysql
SQL
0 vote184 views1 answer
Mysql loop through databases and execute query
SQL
2 votes186 views1 answer
Query any digits record
SQL
7 votes195 views3 answers
Postgresql dump and restore db
SQL
0 vote179 views1 answer
PSQL qith variables
SQL
3 votes194 views1 answer
Increment integer in table sql
SQL
13 votes188 views5 answers
Sql default
SQL
8 votes178 views1 answer
Oracle find text in functions
SQL
0 vote186 views1 answer
Stored function in sql
SQL