The discipline of Operational and Architectural Management of Database Systems.

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2answers
37 views

How to build a table for a private messaging system that supports replies?

I'm writing a private messaging web application in PHP, the application allows replies such that when you view a message, you also get to see to what was that a reply to, and to what was that a reply ...
0
votes
5answers
54 views

Getting Data Back after Wrong Data Restore in SQL Server

I would like to inquire if there is an possible way to return lost data that stored in a Sql server Database after making a wrong database restore? I know it is extremely hard to get a positive ...
0
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0answers
28 views

How do I create an after Trigger in sql for a price reduction?

So im trying to do this for a personal project of mine just as a hobby kind of thing. What i need help with is that im not sure how to put a SQL After trigger for something i want to try. What i have ...
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vote
1answer
1k views

DB2 - how to safely blow away database on linux?

I'm using (I believe) 10.1.2, on CentOS 6.5 (for sure). The underlying problem I have is that the database upgrade package prepared in house isn't working for me, in at least the sense that the ...
0
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0answers
55 views

How to downgrade Oracle Database from 11gr2 to 10g?

In certain situation i have to downgrade from 11gr2 to 10g but coudn't find right way to downgrade. Can you please give a right direction and possible causes to Database.!
0
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0answers
35 views

Forcing FK constraint to validated in system catalog

I have a big table (~60gigs, 35mill+ rows) that I need to add a FK to. Adding a FK directly to the table causes a validation which runs for about 30secs that I want avoid as it's a 30sec access ...
2
votes
2answers
79 views

Should a SQL Server DBA know Windows Server and vice versa? Are these roles soon to become synonymous. Or at least more encapsulated/?

I have Jr. experience with SQL Server and a desire to dive deep into Windows System Administration. Are these fields too separate to combine skill sets? Would I be marketable as a Windows Admin who ...
0
votes
1answer
21 views

Mysql Multiple data files rollover size

we want to setup the mysql ibdata files in such a way that after every 100M , new data is added to another file specified in innodb_data_file_path i.e. ...
0
votes
0answers
24 views

DB2 Fixpack 10 install missing folder!

Hello everyone that are reading this! I'm trying to perform a fixpack install into DB2 9.7 version database in a linux 64 bits server. i terminate my database, stop my instance. And when i try to ...
0
votes
1answer
30 views

Add '%' sign to MySQL results

I am using a query to calculate total percentage but I want a '%' symbol to appear next to it. Any ideas that could help me My query so far is SELECT student.StudentID, student.Name, ROUND ...
0
votes
1answer
38 views

MySQL query INSERT INTO … failed - The Table “x” is full

I apologize if my question is incomplete or noobish, I have extremely limited knowledge of SQL but the boss wants me to figure this one out. Environment: Webmin/Virtualmin | MySQL version 5.1.73 on ...
0
votes
1answer
100 views

Postgresql 9.4.1 stuck all queries when making multi updates

Before i used 9.3.5 and servers with ubuntu 12 with 32GB memory. After upgrade to 9.4.1, with more power server 60GB memory on each in wall replication and ubuntu 14, started get db stucks when run ...
3
votes
1answer
101 views

Unable to start SQL Server Browser service in Sql server 2005 [closed]

we are unable to start the SQL browser service on one of our machine with below error: I believe this to be the reason, why we could not connect to the instance with below error: I tried ...
0
votes
3answers
82 views

MySQL Exporting a query to text file via Cron Job

I'm in the beginning stages of hacking together code that syncs two completely different pieces of software/webware. I'm looking for a way to run a SQL query and output the results to a text file. I'd ...
0
votes
0answers
28 views

HSQLDB like datasource to JAVAEE APP on JBOSS 7 FAIL

I am having problems while starting a sample app on JBoss server 7.0. Below follow piece of start log: 12:19:10,156 ERROR [org.jboss.as] (MSC service thread 1-7) JBoss AS 7.0.0.Final "Lightning" ...
0
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0answers
26 views

Fill Factor - Displaying Old values

I updated my fill factor value from 0 to 75 and I rebuild all the indexes on the database When I ran select * from sys.indexes some indexes are 0 and some are 75 The Indexes that are 0 (I am not ...
0
votes
1answer
49 views

Any tips to watch out for when setting one of my databases to Read Only?

Our front end application uses\ pointed to a different database now in SQL Server 2008R2 in the same instance, so to prevent users from accidentally updating data in the old production database, is it ...
7
votes
3answers
13k views

Reset IDENTITY value

I have a table with an IDENTITY column. While developing I delete the rows from time to time and add them again. But the IDENTITY values always kept increasing and didn't start from 1 when I added ...
0
votes
2answers
47 views

Sql Server Fill Factor - Restart sql server services

I changed the Fill Factor option from 1 to 75. When I run a query that displays the fill Factor I am seeing 75 But I read online that I have to stop and start the sql Server services inorder for ...
0
votes
0answers
25 views

SQL Server to Oracle migration

Converted model resulted into incomplete script generation as all stored procedures, triggers and views were missing, only table structures were generated and i did not get any error messages for it. ...
0
votes
0answers
17 views

Load data into central database

We have 150 databases at different locations. These databases need to be move into central database. currently, i am using transactional replication, but facing lot of issues. are there any other ...
0
votes
1answer
40 views

Sql Server audit could not write to the security log

I am following the training kit for 70-462(Administering Microsoft SQL Server 2012 Databases), and stuck on Auditing SQL Server instances lesson. I have created new user in domain controller, assign ...
1
vote
1answer
38 views

“Unknown table engine 'innodb'” error after changing my.cnf

I am getting "Unknown table engine 'innodb'" for some query after changing my my.cnf. I have reverted the old my.cnf and restarted mysql and now I can see innodb. Could you please help me figure out ...
0
votes
0answers
21 views

Why isn't user being shown in DBA_USERS?

I have created a user and I wanted to know it's default_tablespace but whenever I run SELECT query for showing default_tablespace or anything it says no rows selected.How can I resolve this issue? ...
1
vote
1answer
661 views

Transpose MySQL rows as column names - DYNAMIC

My goal is to be able to calculate the time difference between the ticket timestamp being created and closed and if reopened Add time from being reopened to closed again etc.. I have an existing mySQL ...
1
vote
1answer
35 views

Should my application utilize database credentials for user login?

I'm working on an application that has an ASP front end and a SQL Server database. The way credential management is currently performed is there is a custom built User Table in the database that ...
0
votes
1answer
35 views

MySQL partitioning table by date and hour

I have a table with a timestamp field. This table will have millions of rows every day so the idea is to create partitions by date and hour. Every day I will delete partitions older than 10 days and ...
-1
votes
1answer
39 views

Server has antivirus. Do I need to enable external locking on MySQL?

From MySQL docs: If you only read tables with other programs, external locking is not required Assuming the bytes of MySQL files does not match viruses, the antivirus will not change the ...
1
vote
1answer
46 views

Best away to keep monthly records of loans

I'm trying to make a database to keep records of the amounts payed on a loan on a monthly basis. I already have tables for the clients, accounts, products and loans: create table product( id ...
0
votes
0answers
102 views

mysqldbcompare shows checksum fail but row differences passes between MySQL 5.1 and 5.6 databases

I have started to try using mysqldbcompare to help me compare two databases(one is MySQL 5.1.73 and the other MySQL 5.6.21) that are each about 5 gigs with lots of tables, but the databases are ...
0
votes
0answers
124 views

upgrading posgresql 9.0 to 9.4 with pg_upgrade on CentOS 6.6

I'm trying to upgrade a postgres v9.0 database to v9.4 with pg_upgrade on CentOS 6.6, but I keep hitting a wall. I am calling pg_upgrade thru a shell script as postgres, first exporting the needed ...
1
vote
3answers
3k views

MySQL Table not repairing

Table info: Database name: user_motiva Table name: wp_options.frm wp_options.MYD wp_options.MYI wp_options.TMD when I do a mysqlcheck -r --all-databases it gets hung on that table even if you ...
0
votes
0answers
23 views

CPU utilization for a particular query in Postgres [duplicate]

Is there any way to know how much CPU particular query is utilizing in PostgreSQL?
19
votes
7answers
713 views

Where can I find some guidance on index strategies?

Most of us will probably agree that using database indexes is good. Too many indexes and performance can actually be degraded. As a general rule, which fields should be indexed? Which fields should ...
1
vote
1answer
156 views

Is this a good case for multiple SQL Server instances on a VM?

We have a suite of applications utilizing SQL Server have the following characteristics: Users create/destroy DBs via a UI, so DBs appear/disappear without DBA assistance. DBs of the same name can ...
0
votes
1answer
50 views

Searching between dates on a CHAR type field

I have a table that has a field in which dates are stored, the problem is that the field type is CHAR(10) and I'm being asked to query for data between certain dates. I don't want to change the field ...
0
votes
0answers
66 views

SQL Server Job Database name

First time post, long time lurker. I am trying to find and write a query for what database is affected by a SQL Server job. I have checked the following: Get a list of SQL Server Agent Jobs and ...
0
votes
0answers
30 views

Integrating Postgres/GIS data in a SQL Server environment without generating 'data islands'

Currently I'm facing a scenario in which a GIS expert is planning on starting to integrate mapping services for several departments within the organization I work for. I handle around 40 mid-sized ...
0
votes
0answers
22 views

Procedure Security Layer

I want discuss an idea with you and get your opinions what you think about it. From database (SQL Server 2008 R2) administration view and general security, its good practice to create DB roles and set ...
0
votes
2answers
54 views

Database logs growing during maintenance plan

I have read several threads and sites about SQL logs but I don't feel I have found the answer. Or if I did I did not understand it enough to address my issues. My issue: When I run my SQL maintenance ...
1
vote
1answer
65 views

Database backup issue in SQL Server

For security reason I always took back up of my database. I took full backup in each month. And differential in each week. I used to save each back up file in different name. I lost my latest full ...
-4
votes
2answers
298 views

Incremental backup in SQL Server [closed]

I got a task for backing up my clients data through internet. Client has about 50 GB of data there. So I need to back up the data and pass through internet, but it takes about 8 to 9 hours for this ...
1
vote
1answer
23 views

Trigger to apply user mapping to logins on database creation [closed]

Does anyone have any example triggers that apply user mapping on database creation?
0
votes
0answers
203 views

Why am I able to query a remote database without a dblink?

While researching a security concern, I discovered that users are able to query a remote database without the need of a dblink. However, this was only true for databases that had no value for ...
3
votes
2answers
54 views

query to find all dblink()

Besides manually searching for all the dblink() used in triggers/functions/stored procedures is there a way to query for this information? Example: There is a dblink inside of a trigger, can I select ...
5
votes
2answers
597 views

When was a Database taken Offline

I am trying to find a way to figure out when was couple of my sql databases were taken offline. I checked the the logs but could not find any such info and moreover there is no default trace enabled. ...
0
votes
3answers
57 views

Prepopulate database with empty / null values [mysql]

What would be the best way to pre-populate a database with 100 empty fields and then begin the Auto_Increment? What I mean to say, I want to reserve the first 100 userfields (ie UIDs which are ...
2
votes
1answer
4k views

Cannot browse for Backup files using SSMS [duplicate]

I'm facing a strange problem. When I try to backup or restore any database using a SQL Server user (not sa) that belongs only to "public" server role, i have the following error when i click the ...
0
votes
1answer
43 views

How to directly query other user tables

I am trying to learn Oracle database and I am having difficulties on importing a backup file with impdp command. I googled deeply but couldn't find answers to my problems. What have I done until now ...
0
votes
2answers
99 views

Is there any other way that we can take auto backup in oracle 11g apart from RMAN?

I have tried with RMAN. But is there any other possible way that we can backup database and tables. backup using queries or stored procedures is possible?