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15 Νοε 2010 · The reference documentation for the UPDATE statement on DB2 LUW 9.7 gives the following example: UPDATE (SELECT EMPNO, SALARY, COMM, AVG(SALARY) OVER (PARTITION BY WORKDEPT), AVG(COMM) OVER (PARTITION BY WORKDEPT) FROM EMPLOYEE E) AS E(EMPNO, SALARY, COMM, AVGSAL, AVGCOMM) SET (SALARY, COMM) = (AVGSAL, AVGCOMM) WHERE EMPNO = '000120'
Example 1: Change the job (JOB) of employee number (EMPNO) '000290' in the EMPLOYEE table to 'LABORER'. UPDATE EMPLOYEE SET JOB = 'LABORER' WHERE EMPNO = '000290' Example 2: Increase the project staffing (PRSTAFF) by 1.5 for all projects that department (DEPTNO) 'D21' is responsible for in the PROJECT table.
This tutorial shows you how to use Db2 joins including inner join, left outer join, right outer join, and full outer join to combine rows from two tables.
Updating Db2 data by using UPDATE statements. You can change the data in a table by using the UPDATE statement or the MERGE statement. The UPDATE statement modifies zero or more rows of a table, depending on how many rows satisfy the search condition that you specify in the WHERE clause.
The INNER JOIN clause combines each row from the first table with every row from the second table, keeping only the rows in which the join condition evaluates to true. The following shows the syntax of joining two tables using the INNER JOIN clause: SELECT. select_list. FROM.
The UPDATE statement updates the values of specified columns in the rows of a table. It is used to modify the existing records in a table. UPDATE table_name. SET column1 = value1, column2 = value2, ... WHERE condition; Be careful when you updating a records in a table.
The SET clause of an UPDATE statement can be used in many ways to determine the actual values to be set in each row being updated. The following example lists each column with its corresponding value: UPDATE EMPLOYEE SET WORKDEPT = 'D11', PHONENO = '7213', JOB = 'DESIGNER' WHERE EMPNO = '000270'
