sql - db2: update multiple rows and field with a select on a …
2011年12月12日 · So you have to clearly separate the steps to. identify the rows to be modified and to. compute the new value. . Here is an example: UPDATE TABLE A. SET A.FLD_SUPV = ( SELECT B.FLD_SUPV. FROM TABLEA A, TABLEB …
sql - How to update multiple columns in single update statement …
2014年3月26日 · 1. For the sake of completeness and the edge case of wanting to update all columns of a row, you can do the following, but consider that the number and types of the fields must match. Using a data structure. exec sql UPDATE TESTFILE. SET ROW = :DataDs. WHERE CURRENT OF CURSOR; //If using a cursor for update.
INNER JOIN in UPDATE sql for DB2 - Stack Overflow
2010年11月15日 · However, if you are on DB2 LUW, see the MERGE statement: update: note that Db2 for IBM i added MERGE support in late 2010 to v7.1 and higher. Db2 for z/OS also has it. For your example statement, this would be written as:
IBM db2 update substring in column - Stack Overflow
2019年7月31日 · I have a table X with column Y (IBM db2) where column Y is a string of length less than 2048 characters. Some values in column Y contains string like ID some_value. I would like to remove all those keys and values. For example: Row before update: some text a ba ba b a ID sffjhdsf32484 further part etc etc . Row adter update:
sql - How to update DB2 table with a join? - Stack Overflow
2013年11月17日 · INNER JOIN in UPDATE sql for DB2. 2. DB2 Update with join queries. 2. DB2 update using inner join. 2.
Can a DB2 WITH statement be used as part of an UPDATE or …
1. If you're running DB2 V8 or later, there's an interesting SQL hack here that allows you to UPDATE/INSERT in a query with a WITH statement. For inserts & updates that require a lot of preliminary data prepping, I find this method offers a lot of clarity. Edit One correction here - selecting from UPDATE statements was introduced in V9 i ...
sql - DB2 update column with incrementing number based on …
2016年2月18日 · declare x1 cursor for select * from xyz where seq_no is null for update of seq_no open x1 fetch from x1 update xyz a set a.seq_no = (select nvl(max(b.seq_no)+1, 1) from xyz b where b.ref_no = a.ref_no) where current of x1 -- REPEAT ABOVE TWO STATEMENTS UNTIL FETCH RETURNS NO ROW -- close x1 select * from xyz
Update using select in DB2 - Database Administrators Stack …
2018年4月26日 · There's probably a more elegant way to do it but this should only update the matching rows: update TableA A. set email = (select email from TableB B where A.address_id = B.address_id) where exists. (select 1 from TableB B where A.address_id = B.address_id) ; Another option is to use MERGE: MERGE INTO TableA AS A. USING.
db2 - update values based on values from another table
2017年5月10日 · 02 BARACK.OBAMA. 03 ABRAHAM.LINCOLN. Table B has the following data. ID OLDLOGIN NEWLOGIN. 01 DONALD.TRUMP DONALD.T. 02 ABRAHAM.LINCOLN ABRAHAM.LIN. I want to update Table A's LOGIN value, give them the NEWLOGIN values if they exist in OLDLOGIN in Table B. So the final result in Table A should be like below.
db2 - SQL Statement with multiple SETs and WHEREs - Stack …
2011年6月22日 · The string terminator tells the SQL client that the update statement is finished and to go to the next ...