DB2 and the SQL standard don't have a FROM clause in an UPDATE statement. 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:
The files in /opt/ibm/db2/V10.5/ are not to be used for a specific instance. When you run the db2icrt command, it copies a series of files and directories into ~db2inst1/sqllib, and sets the permissions accordingly.
11 This response is to hopefully fully answer the query MrSimpleMind had in use-update-and-insert-in-same-query and to provide a working simple example of the DB2 MERGE statement with a scenario of inserting AND updating in one go (record with ID 2 is updated and record ID 3 inserted).
I have a SQL Server 2012 instance with a linked server pointing to a db2 database on an IBM Iseries system using the System i Access ODBC Driver. I'm trying to enable distributed transactions.
Referring to tables as files, though, leads me to believe that you're NOT running DB2 on Linux, UNIX or Windows (LUW). 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:
When I wanted to update a table to the values from another table in SQL Server I would use following syntax: UPDATE t1 SET t1.a = t2.a FROM t1 INNER JOIN t2 ON t2.b = t1.b What would be iSeries 7 ...
3 since sql those all the lines you want it to do, I would do you're code like thise Inside you Sql management too do execute query and this should work.
I have a table (Table A) in DB2 where a columns needs to be updated based on values from values from Table B. e.g. Table A has two columns and following data. ID LOGIN 01 DONALD.TRUMP ...
An UPDATE or DELETE statement with a WHERE CURRENT OF CL was attempted, but the cursor is not positioned on a row or is positioned on a row, but the row is not locked because a COMMIT HOLD or ROLLBACK HOLD statement released the lock on the row. A FETCH statement must be issued to position the cursor on a row and lock the row. Recovery . . .
