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If a view is created by using a 'SELECT *' statement, the view is not updated when a new column is added to the base table. An example: create table dm_tab(N integer, M integer) organize by row; insert into dm_tab(N, M) values (1, 2); create view ...
Executes external commandline-scripts from stored procedure. The stored procedure call should work like following: select * from (VALUES '`sh /tmp/test.sh`') AS TEMP(Testoutput); With the script i check if new created tables or views from developm...
DB2Z-Allow for EXCHANGE DATA function on Clone table to NOT put packages in VALID status of 'A'
We have processes that use the clone table feature to allow for non disruptive load operations. When we do the exchange data the packages on the primary table move to a VALID STATUS of 'A' when they had a status of 'Y' previously. This creates iss...
Allow table compression to be disabled for DGTTs and CGTTs
In short: OLTP applications frequently encounter performance issues because DB2 enables table compression by default for all DGTTs / CGTTs. Details from a real-time example: When inserting 40K rows to a DGTT, it takes 2 seconds. When we immediatel...
Oracle supports disabling index in ALTER INDEX command.
Disabling an index means that the index still exists in the database, but it is not included in the optimizer.
It would be also helpful in Db2 when find out the optimal Index.
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