IBM Data and AI Ideas Portal for Customers


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ADD A NEW IDEA

Statements (DDL and DML)

Showing 95

Real-time statistics with statistics profile can lead to deadlocks and lock timeouts

DB2 real-time statistics facility honors RUNSTATS options specified in the statistics profile, while performing synchronous statistics collection during statement compilation. If the statistics profile contains ALLOW READ ACCESS option, this can l...
about 9 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

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...
almost 4 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Drop STP SQL with dependency of other STP SQL type NATIVE

We have a general purpose StoredProcedure (STPX1) that is called by other native StoredProcedures (STPA1, STPA2, STPA3, etc) that have CALL statements to STPX1, If I need DROP the STP STPX1 (for recreate later) I receive the error -478 for depende...
about 4 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

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...
over 4 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Favor BID index against TBSCAN for MDC tables

Ref: case TS000043776 2 DMLs working on different dimensions on MDC can lead to deadlock when this should not happen.
almost 7 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Add varchar(max) and nvarchar(max)

We are frequently moving data between MS-SQL server and Db2. When data are moved from Db2 to MS-SQL there are no issues. But when data are moved from MS-SQL to DB2 we have frequent problems with varchar and nvarchar data types for data types where...
over 2 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Add new option to create schema / alter schema

Add new options to create schema / alter schema to specify default tablespaces
about 9 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

It's not supported to use ASCII and UNICODE tables together (SQL0873N)

Case #000080573 DB2 Z/OS supports multi-codeset objects in one database but LUW does not that. We cannot do JOIN, UNION ALL, or SELECT ~ INSERT between these tables which are all supported in DB2 Z/OS. In addition, DB2 Z/OS has a function like UNI...
almost 7 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Documentation for declare cursor database

The documentation of the DECLARE CURSOR does not include the DECLARE CURSOR DATABASE. However, this is included in other parts of the KnowledgeCenter.
almost 5 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

The change 'Primary Key Name' is added!

Currently, I know that there is no function to change only the 'Primary Key Name' of Db2. Especially in the case of Primary Key, Unique Index is also created when it is generated! Since the primary key name cannot be duplicated, there is a problem...
over 2 years ago in Db2 / Statements (DDL and DML) 0 Future consideration

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