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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'
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.
The UPDATE statement is used to modify the existing records in a table. UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, ... WHERE condition; . Note: Be careful when updating records in a table! Notice the . WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated.
First, specify the name of the table that you want to update data. Second, specify a list of column c1, c2, …, cn and the corresponding value v1, v2, … vn that need to be updated. Third, specify the condition to indicate which rows to be updated.
To update the CORPDATA.EMPLOYEE table to reflect the move, run the following statement: UPDATE CORPDATA.EMPLOYEE SET JOB = :PGM-CODE, PHONENO = :PGM-PHONE WHERE EMPNO = :PGM-SERIAL. Use the SET clause to specify a new value for each column that you want to update.
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.
3 Απρ 2013 · In the first line, you tell the computer that you are updating a table named CUSTOMER, which you call “c” for short. In the second and third line, you identify that old (existing) and new (replacement) values and tell how they join to the CUSTOMER table.
