The IBM DB2 Enterprise Server Edition is a relational model database server developed by IBM. It primarily runs on Unix (namely AIX), Linux, IBM i (formerly OS/400), z/OS and Windows servers.

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35 views

DB2 sorting by lowercase uppercase - problem

I'm struggling with DB2 - sorting by Polish letters with diacritics and uppercase/lowercase. When I created a database using: CREATE DATABASE P1DS8 AUTOMATIC STORAGE YES ON '/home/db2inst1' DBPATH ...
2
votes
1answer
42 views

How to change the owner of a Stored Procedure in DB2?

Let's say that I have a procedure called schema.proc1. How do I change the owner of it? I'm using db2 express-c 10.5 I've tried the following command running as the olduser, transfer ownership of ...
2
votes
1answer
73 views

How to apply a regex on a column fetched from DB

I am using IBM DB2. So, I am retrieving a column named SSN from a table. I have to apply the following regex on that column: ([1-57-8][0-9]{2} |0([1-9][0-9] |[0-9][1-9]) |6([0-57-9][0-9] ...
2
votes
1answer
298 views

db2 performance issue - large number of IOPS how to determine problem?

DB2 database is on storage. We are using 9.7 Storage administrators reported that today database was doing 5000 IOPS (during past days average number was 300 IOPS). Those are disk operations from ...
2
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1answer
1k views

creating PKs for existing tables - altering column constraints

I am quite new to DB2, so I googled around how to ask questions correctly and so I hope I can provide all necessary information. I have an existing table A1230922.CALSONW with several (195) columns ...
2
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1answer
46 views

DB2 MQT not rewriting role playing columns

If in a MQT, if I have 2 referential constraints to the same table (role playing) , usage of one of the constraints doesnt allow the query to be optimized Example FACT_SALES DIM_BILL_TO_ID --> ...
2
votes
1answer
168 views

How efficiently does iSeries DB2 use index with WHERE <>?

MS SQL dev here, this is my first attempt to optimize a DB2 query on iSeries. I was asked to help improve a huge query which consists entirely of dozens of joined subselects. Some of those subselects ...
2
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1answer
3k views

DB2 Communication link failure issue

I would like to get your valuable suggestions for the below problem. My Perl application connects to a DB2 database and keeps inserting data into a table. The application successfully inserts data ...
2
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1answer
1k views

DB2 Server Table Space Locked

At work we keep receiving the following DataException seemingly at random when one of our processes tries to write/access a table for one of our clients: com.ibm.db.DataException: A database manager ...
2
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1answer
852 views

How to create Buffer Pool in Database dedicated only for ONE BIG table?

I have table TICKET with 400K records in database (DB2). I wish to create one huge buffer pool which will be dedicated only to this one big table for faster response. What are the steps to do it? ...
2
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2answers
3k views

How to drop a DB2 instance when the instance owner was removed

This is a real sticky situation. I was handed over a machine (running an AIX 7.1), and my first task was to re-install DB2 server on it. But someone before me had conveniently removed an instance ...
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3answers
3k views

How do i subtract a number of days from a prepared statement parameter in db2?

I have a C# application using OLEDB to connect to a DB2 database. Basically, I want to do this: SELECT CALC.WEEK, COUNT(CALC.ID) AS TRANSACTIONS , SUM(CALC.SUBTOTAL) AS REVENUE FROM ( ...
2
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1answer
3k views

DB2 Express on Windows 7 - Disable security?

I'm trying to install DB2 Express-C on my PC (Windows 7 pro), but no matter how I've installed or configured it, I can't grant the ability to create databases to my windows domain account. No matter ...
2
votes
1answer
195 views

DB2 Count problem

We have a query that returns over 20,000 rows on some occasions but times out due to the large amount of data. We have written a COUNT(*) query to throw an error if the record count is more than ...
2
votes
1answer
396 views

DB2: Is it good to create the LONG table space to use 32 KB data page

Our DB2 database(V9.7) has only defined one table space to store all the big object like xml. And xml size could be different. Some are about 2kb average. And some are 7kb average. So does it make ...
2
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3answers
2k views

DB2 LOAD data into table - Interpreting the error messages

I encountered some constraint issues when loading data from file into table ** SQL3109N The utility is beginning to load data from file "xag". SQL3500W The utility is beginning the "LOAD" phase at ...
2
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2answers
957 views

Syntax changes between DB2 for i (DB2/400) v5r4 and v6r1

Does anyone know where can I find list of syntax changes between DB2 for i v5r4 and v6r1? We are currently migrating a backing database for an application from DB2 for i v5r4 to v6r1 and found out ...
2
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1answer
737 views

Does DB2 have equivalents for Oracle's UTL_ENCODE and UTL_RAW modules?

I'm looking for something similar to: utl_smtp.command(conn, utl_encode.base64_encode(utl_raw.cast_to_raw(<username>))); I couldn't find any reference among the DB2's system-defined modules ...
2
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2answers
674 views

What is the recommended Buffer Pool size on a 2GB RAM PC?

I installed DB2 Express-C on a PC with 2 GB RAM and running Windows Server 2008 R2 OS. While creating a new database, there is an option to set Buffer Pool size with default set to 4K. How much is ...
2
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1answer
714 views

copy schema across different physical databases in db2

Is there any way to programatically copy across schema (i.e. tables,functions,views) etc from one database over to another one. Assuming both are running same versions of DB2. I found a few utilities ...
2
votes
1answer
243 views

How do you convert IBM DB2's recursive increment to MySQL version?

DB2 Queries: WITH TABLE1 (YEAR_END) as( VALUES (2011)) , TABLE2 (YEAR_END) AS ( VALUES(2011)) , TABLE3 (YEARS) AS ( SELECT 0+2008 FROM TABLE1 T1, TABLE2 T2 union ...
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0answers
29 views

How to reinstall a legacy DB2 Server 7.x for Linux?

We have to move our legacy database dump to a new Linux installation. I know DB2 7.x is out of support for over a decade, but is there a way to obtain a DB2 7.x Server installation media for Linux? ...
2
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0answers
45 views

Optimization suggestions for db2 materialized view

I have a view for db2 9.7 which has consolidated o/p from few tables. The view is built and it is working fine I want optimization suggestions on the view SQL CREATE VIEW XYZZ AS SELECT ...
2
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1answer
827 views

Split comma separated entries to rows

I have a Table like this: | ID | OtherID | Data +--------+-----------+--------------------------- | 5059 | 73831 | 5103,5107 | 5059 | 73941 | 5103,5104,5107 | 5059 | 73974 | ...
2
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1answer
921 views

DB2 Query Error SQL0204N Even With The Schema Defined

I'm using Python to access tables in DB2 10.1.0 I have a login account named foobar and a schema with the same name. I have a table named users under the schema. When I'm logged in as foobar, I can ...
2
votes
1answer
48 views

Adding a column to the view which shows the date in format YYYYMM

In the following view, I want to add a column (not alter the view) named say "ABC" which shows the date in format YYYYMM (no date, only year and month). How can I do that? I am using db2. create view ...
2
votes
1answer
84 views

DB2 9.7, create or replace tablespace possible?

I am creating my tablespaces in the sql scripts that create the database schema. This causes a problem in continuous integration processes, where consecutive execution of the script is not possible ...
2
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0answers
307 views

IBM DB2 Command line Window - Administrator disappears on windows server 2008 r2?

I have installed IBM DB2 version 10 on windows server 2008 r2 machine. However i am unable to open it's command line window. For example: Whenever i try to open Command Windows - Administrator it ...
2
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0answers
702 views

Cannot install DB2 Express C 10.1 on Mac OS X 10.7.5 [duplicate]

When I invoke ./db2setup it cannot find the JRE where it expects it. Binary for Java not found as follows: /private/tmp/db2/expc/db2/macos/install/db2setup: line 606: ...
2
votes
1answer
541 views

Can High Water Mark be cleared?

Lately I experience below errors when restoring db2 database SQL2043N Unable to start a child process or thread SQL1084C Shared memory segments cannot be allocated db2stop and then db2start ...
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2answers
372 views

DB2: Cannot use RUNSTATS/REORG in trigger definitions?

CREATE TRIGGER MY_TRIG AFTER INSERT ON MY_TBL FOR EACH ROW BEGIN IF SOMECONDITION THEN DELETE FROM MY_TBL WHERE PK IN (SELECT PK FROM MY_TBL WHERE SOMEOTHERCONDITION FETCH ...
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2answers
64 views

Best approach to maintain a single set of DDLs and DMLs for multiple database type

In our application, we support multiple types of databases namely Oracle, IBM DB2 (both UDB and ZOS), postgresql and So on. Currently we are maintaining separate DDLs and DMLs for each of these ...
1
vote
1answer
699 views

Testing if temp table exists in iSeries SQL stored procedure

What would be the syntax for testing if there is already a global temporary table in DB2 for IBM i 7.1? I tried this after DECLARE GLOBAL TEMPORARY TABLE: SELECT * FROM QSYS2.SYSTABLES WHERE ...
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2answers
3k views

set integrity not enforced in DB2

I am a bit confused with the SET INTEGRITY concept in DB2, why we can OFF the set integrity check to put the table in PENDING state ? does that mean that we can neglect the constraint definitions on ...
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2answers
31 views

What is the impact on a running database when OS date is changed and set to past

My SAP back end db is db2. Need to understand the impact on this running database (db2 under HPUX) if I change the OS date and set it to a past date please. Thanks.
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2answers
62 views

DB2 database -> does it continue to be platform-specific? (iSeries, LUW, z/OS)

Wikipedia says DB2 is no longer Platform-specific: Historically and unlike other database vendors, IBM produced a platform-specific DB2 product for each of its major operating systems. However, in ...
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1answer
143 views

Transaction(s) still alive: How do I find the cause?

I can tell that something is hogging the transaction log on the DB2 for one of our Websphere Commerce installations. Basically I have a burst of transaction log files that are timestamped 5 days ago. ...
1
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1answer
1k views

SQL1641N error on linux while running db2start using db2 express c on linux (LUW) but the file system is not mounted using nosuid

I am trying to install and start db2 on my linux machine using the following script: #!/usr/bin/env bash MKDIR=/bin/mkdir RM=/bin/rm TAR=/bin/tar ...
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2answers
2k views

Adding User access to DB2

I have installed DB2 10.1 in a Red hat box. During the installation I was asked to create several users (db2inst1, db2fenc1 etc). I have been using db2inst1 to perform all operations with DB2 and it ...
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4answers
670 views

Backup and restore of RDBMS(Oracle, DB2, SQL Server) from Perl

What could be the best approach ? Till now could figure out the following (Oracle) Calling exp.exe and imp.exe utilities in Oracle client using Java and inturn call it from Perl. Calling exp.exe ...
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4answers
4k views

What is the purpose of having a table NOT LOGGED INITIALLY

I came across this recently. When defining a table in DB2 LUW (at least 9.5 or higher), you can define it as NOT LOGGED INITIALLY. Example from the book I read: CREATE TABLE products ( productID ...
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1answer
508 views

What does HSJOIN mean in an Explain Plan?

I have the following EXPLAIN PLAN results from a query on my DB2 database. 0 SELECT STATEMENT ( Estimated Costs = 5.928E+02 [timerons] ) 1 RETURN 2 HSJOIN 3 [O] ...
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1answer
54 views

DB2 - question regarding RESTORE OFFLINE backup and Archive Logs

I configured last night DB2 to be in Archive Mode. I created required offline backup at 23:00 last night. First online backup will be created at Friday night. Archive logs now keep coming to the ...
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1answer
58 views

ONLINE BACKUP is not performed from the CRON Job on LINUX server (manually it works)

I made a script which executes successfully online backup when it is run manually by the instance owner. Script is the following (two lines originally). #!/bin/bash /opt/ibm/db2/V9.7/bin/db2 ...
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1answer
494 views

Remove single quotes from db2 column name

I have following query which i am trying to execute against db2 database server SELECT REPLACE('\'abc\'','\'','') FROM TN_DAY_PROCESS I am expecting the output like abc without single quotes from ...
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1answer
147 views

db2 connecting to a db via alias and storing user name and password

I created a TCP node and I catalogued a db into it. The catalogued db needs user name and password to be accessed. Is there anyway I can store username and password in the cataologue (or other way)? I ...
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2answers
152 views

query to check all SCD tables that have data for specific date

It's easy to find all SCD tables through select * from syscat.TABLES t join syscat.COLUMNS s on t.tabname = s.tabname where s.COLNAME = 'EFFECTIVE_DTE' and t.type='T' ...
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vote
4answers
10k views

Query to list all tables in a schema

I am using Rational Application Developer to run querys on a database. We are unable to locate anyone who has a list of the tables on the schema and so far the queries we have found to get a list of ...
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1answer
219 views

Cannot execute stored proc linked to C routine in DB2

DB2 version: 9.7.0.6 OS: RHEL 5 Here are the steps I took to create and bind a C routine to DB2: 1> Created myprog.sqC file 2> Executed db2 prep myprog.sql bindfile 3> Executed db2 bind myprog.bnd ...
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1answer
1k views

IBM DB2 - store large files

I want to store large files in a DB2 database and I need more information about which is the best technique to use as I am new in this IBM product (previous experience with T-SQL only). The ...