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'
In this scenario, we will use a value which is the result of a join condition to update multiple rows of a column. UPDATE EMP_JOIN_TEST A SET DEPARTMENT_NAME = (SELECT DEPARTMENT_NAME FROM DEPARTMENTS WHERE DEPARTMENT_ID = A.DEPARTMENT_ID ) WHERE DEPARTMENT_ID IS NOT NULL; 10 rows updated. SELECT * FROM EMP_JOIN_TEST;
24 Μαΐ 2017 · Usually, when you need to join multiple tables in an UPDATE, MERGE is the solution. merge into address a1 using ( select p.address_fk, ta2.tempaddress1 from premise p join account ac on (ac.id = p.account_fk) join tempaddresstable ta2 on (ac.ext_ref = ta2.tempextref) ) ta1 on (a1.id = ta1.address_fk) when matched then update set a1.address1 ...
Updates Based on Queries. This article describes how a table can be updated using data from another table. Setup; Subquery Method; Inline View Method; MERGE Statement Method; Related articles. MERGE Statement; Setup. The DEST_TAB table contains 10,000 rows.
27 Δεκ 2023 · Before diving into complex examples, let's understand the basic syntax of an update with a join operation in Oracle: sql UPDATE table1 SET table1.target_column = (SELECT table2.source_column FROM table2 WHERE table1.join_column = table2.join_column) WHERE EXISTS (SELECT 1 FROM table2 WHERE table1.join_column = table2.join_column); In the above ...
Example: Update With Direct-Join. In this example, the join condition between table employees e and table jobs j determines which rows of employees are updated. The column jobs.max_salary supplies the new values for employees.salary:
5 Απρ 2023 · Now we update the data in T1 using a join to the T2 table. We want to update the T1.CODE and T1.DESCRIPTION values, using the values from T2.CODE and T2.DESCRIPTION using a join in the ID value. update t1 a set a.code = b.code, a.description = b.description from t2 b where a.id = b.id and b.id <= 5;
