Αποτελέσματα Αναζήτησης
15 Μαρ 2010 · You can do this: UPDATE table1 SET table1.value = (SELECT table2.CODE. FROM table2 . WHERE table1.value = table2.DESC) WHERE table1.UPDATETYPE='blah'
This tutorial shows you how to perform cross-table updates by using the MySQL UPDATE JOIN statement with the INNER JOIN or LEFT JOIN clause.
2 Ιουν 2023 · 1 – Update with From Join. Works with: SQL Server (not MySQL, Oracle, PostgreSQL) This version of the Update statement uses a Join in the FROM clause. It’s similar to other statements like Select and allows you to retrieve the value from one table and use it as a value to update in another table.
The second option is to join the two tables as an inline view and base the update on that. UPDATE (SELECT tt.id, tt.code, tt.description, st.code AS st_code, st.description AS st_description FROM dest_tab tt, source_tab st WHERE tt.id = st.id) ilv SET ilv.code = ilv.st_code, ilv.description = ilv.st_description; 5000 rows updated.
26 Ιαν 2024 · In this guide, we will delve into how to perform an UPDATE using a SELECT query across multiple tables within MySQL 8. This powerful technique allows you to change records in one table based on values in other tables, combining data retrieval with data modification in one step.
9 Ιαν 2024 · MySQL UPDATE with JOIN allows you to update a table based on data from another table or tables. You can join multiple tables using the JOIN keyword and use the SET clause to specify the columns to update and the values to set.
I have the following tables: I can run a select but I'm not sure how to update with a join: select network.label. from invoiceLine. inner join terminal on terminal.ctn = invoiceLine.ctn. inner join network on network.id = terminal.network. but MySQL throws a. Error Code: 1093.
