The discipline of Operational and Architectural Management of Database Systems.

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2
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3answers
730 views

Oracle 12c in-memory option

I've been told that there's an oracle in-memory option for 12c and that it uses columnar compression to get some great query speeds. I'd like to leverage it for some business intelligence stuff. I've ...
4
votes
1answer
1k views

823 errors on tempdb

Have a couple Fiber channel SAN-attached cluster servers which have been intermittently reporting errors like: 2012-05-09 16:31:54.13 spid74 Error: 823, Severity: 24, State: 2. 2012-05-09 ...
2
votes
1answer
12k views

How to grant all privileges on all tables in a schema to a user in IBM DB2?

At first place, I want to export database from IBM DB2 AIX into IBM DB2 windows. Unfortunately, I can't use BACKUP and RESTORE command because of difference OS issue. So I have to resort to db2move ...
1
vote
1answer
58 views

Way to ensure just one connection to a DB2 database

Let's suppose a database with a bad security design, say everyone access to the database with a user with DBADM or SYSADM authority, and also, there could be only username for everyone (i.e. ...
0
votes
1answer
86 views

Moving the IBM Informix IFMXDATA directory to another machine

I'm a total newbie when it comes to Informix DBs, and I'm stuck with what looks like files that contain an Informix database. I'd like to know if it's possible to add or import these files into an ...
0
votes
0answers
476 views

Uninstalling Oracle Database Products: Which & How to?

Long time reader, first time poster. For our client's project we are using Oracle 11g. It's a simple C# web application so we are using Oracle's most basic components. Now my project team has been ...
3
votes
1answer
38 views

“zip” a mySQL (phpMyAdmin) database [duplicate]

I've created a large database on my local WAMP webserver. I would like to send that database with all tables and table data to another computer. Is this possible? mySQL ver: 5.5.15 PHP ver: ...
1
vote
1answer
71 views

What is the advantages of using auto_increment in database as primary key over set of attributes?

I have table as CREATE TABLE circle ( circle_id int(11) auto_increment primary key not null, user_id int (11) not null, title varchar(255) collate utf8_general_ci not null ); CREATE ...
2
votes
1answer
40 views

How can I enable logging for a single function in PostgreSQL?

I want to log the whole function runtime for a single particular function in PostgreSQL? Is this possible? The value of log_min_duration_statement = 3000 in postgresql.conf and I've tried to do: ...
0
votes
1answer
153 views

how many 'text' column a table could have in mysql? I have this error “Row size too large (> 8126).”

I'm working on a application which is kinda complex to explain how it works. But this is the situation I'm in, ------------------------------------------------------------------------------ FIELD1 ...
3
votes
2answers
109 views

SQL Server 2012 Compatibility

I'm converting some stuff over to be compatible with SQL Server 2012 and had a couple of questions. I'm taking out all of the sp_dboption commands and making them ALTER commands instead, but there ...
1
vote
1answer
91 views

Maintenance plan using external tool to execute query and stored procedures giving off no results

My situation is as follows: I am using a third party tool (VisualCron) to run stored procedures and sql queries on several database servers. The stored procedures are from http://ola.hallengren.com/ ...
1
vote
1answer
41 views

Shared emails in a database [closed]

We lost our database administrator over a year ago - and even then she was promoted into the job internally and sort of learned on the job. Basically I say this to establish that strong data standards ...
2
votes
0answers
143 views

Recover innodb database from ibdata1 and *.frm files only

I have a problem on my server. I had a hard disk error on my server, and I restarted it. After that, I started wamp server software, but mysql services were not started. I checked all mysql data, ...
1
vote
1answer
358 views

First query running in PL/SQL Developer results the error

When I run first query in PL/SQL Developer I got the error: Dynamic Performance Tables not accessible, Automatic Statistics disabled for this session You can disable statistics in the preference ...
5
votes
2answers
117 views

Is it somehow possible to predict / foresee when SQL Server will trigger auto-growth?

I found numerous questions / answers about SQL-Server auto-growth - almost all indicating that one should try to avoid auto-growth if possible. However auto-growth is available with MS SQL Server and ...
0
votes
1answer
150 views

How should I config the my.ini(or my.cnf) file for mysql?

Thanks for taking your time to look at my question, and I hope that you can help me with this. I have a Windows Server 2012 server, it has: Memory : 3840MB Ram Processor: Intel(R) Xeon(R) CPU ...
3
votes
1answer
114 views

SQL Server database schema (and likely, some data changes) - how to auto-distribute over many database instances

Our development involves a SQL Server database (also might be Oracle or Postgres later) and we would sometimes make database schema changes or some other interventions in database. What solutions ...
1
vote
1answer
140 views

SQL Server agent job scripts

Being a newbie to database migration, can I script all the database jobs one by one and run them against a new server to create these jobs? If not, why do we use these SQL job scripts? Thanks in ...
2
votes
2answers
503 views

Script to see running jobs in SQL Server with Job Start Time

how to write script to see running jobs in SQL Server with Job Start Time? SELECT sj.name, sja.run_requested_date, CONVERT(VARCHAR(12), sja.stop_execution_date-sja.start_execution_date, 114) ...
2
votes
1answer
49 views

What are these files in MongoDB?

I was looking into my server and I found this: [root@host ~]# cd /var/lib/mongo/journal/ [root@host journal]# ls -lh total 3.1G -rw-------. 1 mongod mongod 1.0G Apr 7 01:18 j._0 -rw-------. 1 mongod ...
0
votes
0answers
32 views

I need a way to implement an incremental Backup/Recovery on mysql client

I need to be able to do a point-time recovery in mysql client from the mysql server. For example I need to Download only the information that have change since last backup. I can do that using log,but ...
4
votes
2answers
1k views

How do you find home information for Oracle RAC on Unix?

Need help finding Oracle home path corresponding to a database instance in RAC environment. I am aware of few of the ways to achieve the same. Listing them below to avoid the same answers. ...
1
vote
0answers
2k views

Importing a different character set export dump into another DB instance

I am trying to import a given dump file using oracle imp utility. However; I am facing the following issues. C:\Users\AD>imp DB_USER/*****@dev1 file=C:\test\db42312.dmp log=C:\test\import2.log ...
0
votes
2answers
2k views

Secure Linked Server - Non privledged user possible? Registry corruption?

Is it possible to use a non privledged Windows domain account to impersonate itself in a linked server? And why would it be unable to read the registry for available network protocols? Overview: ...
2
votes
1answer
97 views

SQL Server - Data and Log Separation

We have a SQL Server 2008 R2 which has, among others, a 12K RPM HDD and a 7.2K RPM HDD. The original intention was to store the data files on the 12K drive and the log files on the 7.2K drive, as is ...
2
votes
3answers
427 views

How can I enter Mongo as a superuser or reset users?

I'm was playing around with permissions and locked myself out of Mongo database. I'm pretty sure I did this by trying to explicitly add access to a database but instead I overwrote only allowing ...
0
votes
3answers
92 views

SQL Server Facets: “Linked Server” exist but “Registered Server” doesn't - why?

I'd like to monitor multiple SQL Server instances. Something similar to what is described in "Monitor Your SQL Server Linked Server Configurations with Policy Based Management" but instead of using ...
2
votes
1answer
74 views

Recovering a partial PostgreSQL archive

I have $PGDATA/base but nothing else. It was taken from an installation after the postgreSQL service was shutdown, so is clean. Is there any way to recreate the other elements in $PGDATA that allow ...
0
votes
1answer
2k views

Oracle 11g increasing shared pool size and java pool size

i need to install/configure oracle jvm on 11g. to be able to install same i need to increase the size of shared_pool_size and java_pool_size. i have automatic memory management enabled. my ...
1
vote
1answer
154 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 ...
0
votes
1answer
67 views

Does redundancy exists in this table?

I'm studying a DB course and I found this table: In this exercise, the objective is to determine whether the table has redundancy or not. According to the definition of redundancy Data ...
0
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0answers
38 views

Create replication sql server for DWH [closed]

I have a DWH and I need to make an update once a day from STG Database to DWH I need use replication in SQL SERVER, How I do this?
0
votes
1answer
557 views

SQL Server 2012 T-SQL Health Check Script / Stored Proc [closed]

I'm hoping not to re-invent the wheel. I was looking for a routine server side health check script(s) / Stored Proc(s) for SQL Server 2008+ hoping they work on 2012 that provide information in ...
1
vote
0answers
241 views

Truncating Table Partitions Containing Data and Global Indexes

I have to truncate a partition (392,000 records) of a table with 20.000.000 records. At the moment, I'm making a truncate table and rebuilding indexes. But the table has 37 indexes and it takes 20 ...
0
votes
1answer
78 views

How to scatter/arrange all the tables in database model (workbench)?

I have around 71 tables and if i open them for creating a model in workbench all overlap as below If i use the auto layout under arrange section then max i can get is as below How to auto arrange ...
0
votes
0answers
39 views

Every 30 minutes mysql stuck for 20-30 seconds [closed]

I have very strong mysql 5.5 computer (Windows server / AWS) . My CPU ~8% ,Disk IO - 0.5% , ~Connection - 800 binlog_format=MIXED, innodb_read_io_threads=64, innodb_write_io_threads=64, ...
7
votes
1answer
8k views

What exactly is binding in DB2?

I recently crossed over from being a Java developer to an actual DBA in our company. I am learning the ropes, so to speak, about being a DBA (which is actually somewhat of a new position for our ...
0
votes
3answers
329 views

MySQL Large DELETE with JOINs

I have a large table players with ~20MM rows which joins to a table stats with ~300MM rows, among others (photos, ...). I want to DELETE all records for players that were born_on before 1950. I ...
0
votes
2answers
130 views

Is it possible to know how many times a user connected to an Oracle database?

Is it possible to know how many times a user connected to an Oracle database? If possible where we can find this information?
2
votes
3answers
593 views

What are the risks of copying MDF/LDF files without detaching the DB first?

Where DB backups are not available, our support team has been trained to restore using the following steps: Get a copy of the MDF/LDF from a file system backup. Stop the instance. Overwrite the ...
0
votes
0answers
806 views

Help with SQL Server Error “ad Hoc access to OLE DB Provider 'Microsoft.ACE.OLEDB.12.0'”

So we have an interesting issue where users are receiving the following error when attempting to query a view in SQL Server 2008 R2: Msg 7415, Level 16, State 1, Line 1 Ad hoc access to OLE DB ...
1
vote
1answer
72 views

Difference between sql agent account logged in as NTLM and UPN?

Can someone please tell the difference between a sql agent account logged in as NTLM and UPN? What is the difference if the sql agent account is logged in as: domain\username and username@domain.com? ...
0
votes
0answers
41 views

MySQL grant select not working properly 5.1.73-log

I have created new users with GRANTS SELECT but this is not applied and still user have full privileges and can still DELETE, DROP, INSERT. SHOW GRANTS for dbreader; GRANT SELECT ON *.* TO ...
1
vote
2answers
1k views

Optimize a MySQL Database using MySQL Workbench

I actually have a few issues. First, I found this information about optimizing: MySQL OPTIMIZE all tables? The problem is, I don't seem to have a mysqlcheck program anywhere. I'm using MySQL ...
0
votes
1answer
177 views

How to make up sqlplus login automatically execute a script for Oracle in Linux? [closed]

Some script is invoked automatically want up sqlplus login, don't know what good method.
0
votes
4answers
100 views

T-SQL: Complete Database in one table

at a relational data model every logical relation is a single table with values and so on. I know someone who is this too much work and he wants to create only one table which contains all. This could ...
3
votes
2answers
359 views

What's the point in SQL Server Central Management Server?

Online MSDN article "Execute Statements Against Multiple Servers Simultaneously (SQL Server Management Studio)" (SQL Server 2012) states: "Note Before you execute the following procedures, ...
0
votes
1answer
255 views

Where to install Oracle client software on SharePoint 2010 Server

We have our ASP.net web application hosted on a SharePoint Server 2010. Our application uses oracle database to save and retrieve data.For our application to work on SharePoint server we need to ...
0
votes
1answer
47 views

Immigrate to file-per-table mode in MySQL

I have 20 MySQL databases and in each there are about 20 tables. All the data is saved in a file called ibData1. Now I discovered about the file per table mode but if I change the value in the my.ini ...