database-administration

I am new to DB2 and I have installed DB2 9.7. I created an instance which is shown below [sathish@oc3855733574 ~]$ db2ilist sathish Settings of /etc/services is shown below DB2_sathish 60000/tcp DB2_sathish_1 60001/tcp DB2_sathish_2 60002/tcp DB2_sathish_END 60003/tcp DB2_TMINST 50000/tcp But, when I start using 'db2start' it throws the following error 07/31/2015 10:26:20 0 0 SQL1042C An unexpected system error occurred. SQL1032N No start database manager command was issued. SQLSTATE=57019 I installed DB2 using 'root' and starting 'DB2' from 'instance' (sathish in this case) Any help or URL

I have a SQL 2005 instance that runs a job that uses a Powershell script to rename the current SQL TX Log backup file by appending "-PrevDay" to it, (subsequently deleting the backup already named "XXX-PrevDay.bak" if it exists), and then run a full backup of the DB and a TX Log backup, if the DB is not in Simple mode. SQL Server Agent Job kicks off the Powershell script through CMD in each job step and the powershell script kicks off the sql backup using "Invoke-SQLCmd" cmdlet. This works great, unless the backup fails, because the SQL job still shows as "Successful". This is because the SQL

I have a problem with Oracle 11g specific timestamp format. This is what I have: select to_timestamp('21-OCT-15 08.24.30.000000000 PM','DD-MON-RR HH.MI.SSXFF AM') from dual; Response from database: ORA-01855: AM/A.M. or PM/P.M. required 01855. 00000 - "AM/A.M. or PM/P.M. required" I have also tried to alter session settings with several commands and still nothing. alter session set NLS_LANGUAGE='ENGLISH'; alter session set NLS_DATE_LANGUAGE='ENGLISH'; alter session set NLS_TIMESTAMP_FORMAT = 'DD-MON-RR HH.MI.SSXFF AM'; alter session set NLS_TIMESTAMP_TZ_FORMAT='DD-MON-RR HH.MI.SSXFF AM'; I can

I have a MySQL database, it is getting larger and larger and I want to move the whole database to another mount point, where I have enough storage. I want my current data to be transferred, and that new data get saved to the new position. software stack: MySQL 5 running on FreeBSD 6 Of course other answers are valid. But if you want to keep the default configuration, do following: stop mysqld mv /var/lib/mysql /var/lib/mysql.backup mount your new partition under /var/lib/mysql cp -r /var/lib/mysql.backup /var/lib/mysql start mysqld Stop mysqld Copy /var/lib/mysql (or whatever $datadir in my

I'm not a trained DBA, but perform some SQL tasks and have this question: In SQL databases I've noticed the use archive tables that mimic another table with the exact same fields and which are used to accept rows from the original table when that data is deemed for archiving. Since I've seen examples where those tables reside in the same database and on the same drive, my assumption is that this was done to increase performance. Such tables didn't have more than a about 10 million rows in them... Why would this be done instead of using a column to designate the status of the row, such as a