The discipline of Operational and Architectural Management of Database Systems.

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21 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 ...
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0answers
8 views

Procedure Security Layer

Hello 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 ...
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14 views

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

Good day, Currently I'm facing an 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 ...
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0answers
22 views

Export entire Oracle schema to ASCII and import into DB2

I'm looking for a solution to export a number of schemas from Oracle to ASCII or other flat file format. The data then has to be read by DB2 import. Does anyone know the what oracle export commands ...
1
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1answer
38 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 ...
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0answers
21 views

Clone ORACLE 10g(linux 5.4 32 bit ) to ORACLE 10g(6.4) 64 bit [on hold]

Can i create a clone of ORACLE 10g(linux 5.4 32 bit ) to ORACLE 10g(6.4) 64 bit.. kindly help me.
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1answer
17 views

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

Does anyone have any example triggers that apply user mapping on database creation?
-4
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2answers
106 views

Incremental backup in SQL Server [on hold]

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 ...
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0answers
79 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 ...
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3answers
35 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 ...
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0answers
87 views

How to calculate database query accurate responses? [closed]

I was given a set of data, 100000 rows of data queried using statistical interface for average value of an attribute. The response is determined using the random-sample query method, with subset of ...
2
votes
2answers
31 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 ...
-4
votes
1answer
19 views

ExecuteNonQuery () not fungsional and database failed [closed]

Public Class Form1 Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load Dim SumberDb As String = "Data Source=c:\users\ogieuntung\documents\visual studio ...
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0answers
52 views

How does SQL Server know it was abnormally shutdown last time [closed]

I am doing background reading on this. Would like to know how does SQL Server know it was abnormally shutdown last time?
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0answers
14 views

Import non-partitioned table into an existing range partitioned table - ORACLE

I have export non-partitioned table1 on disk with some records, then I create same new table2 in my schema (different name) but with range partitioning, I'm talking about Oracle database. So my ...
0
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1answer
38 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 ...
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0answers
6 views

DB2 Change Journal Receiver Size

We are running DB2 on our iSeries, and there is a journal + journal receiver created. The current size of the journal receiver is 200MB (found using the DSPJRNRCVA command). Is there a way to change ...
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0answers
29 views

Reducing the size of a PostgreSQL Database, utilizing a process other than full VACUUM

We have a Postgres 8.4 installation which hosts both our Defect tracking and Code management (Surround) systems. We are looking at converting and migrating Surround to MSSQL on another server. Our ...
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vote
2answers
37 views

How to Permanently solve MySQL error 2002 (HY000)

I have a problem on my cloud server with 2GB of RAM and 40GB Hard Disk that's hosting a Wordpress website that receives around 1000-2000 hits a day. My problem is that MySQL is always crashing and my ...
0
votes
1answer
24 views

What is different between fixed-size disk pages and disk-based?

As per my knowledge, i understand fixed page size as size of page which used for read and write data but i am not able to understand what does mean of disk based ? I read these words from this paper ...
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votes
3answers
110 views

Should login id and password be stored in separate table

I am working on my academic project. I have a table for employee records which have employee id, joining date, designation and other fields. I am trying to implement a scheme in which when record of ...
0
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2answers
78 views

Why is Postgres on RDS maxing out on CPU every few hours?

Using Amazon RDS, we are running ETL scripts to migrate our data. However, every few hours there is a huge CPU spike. Here are the ETL specs (per ETL): 50 records inserted / second pool of 1000 ...
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1answer
65 views

Optimizing Amazon RDS - MySQLTuner Recommendations / Feedback & Suggestions

I'm currently trying to optimize a database I've inherited for speed. The server is an Amazon RDS db.m3.large instance: 2 VCPUs 7.5 GB Memory 500 GB HDD My current strategy is to do the ...
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2answers
29 views

MySQL Image Queries

I have table employees in MySql database with Id, Name, Gender, HireDate, Photo. Photo field is blob. Now when I run this query: SELECT id FROM employees WHERE Photo IS NULL ; it takes forever to ...
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2answers
49 views

Is there an easy way to update connection strings to a database moved to a different instance

I have created a new instance of SQL Server 2008 r2 and exported my database to the new instance. Then I realized that the connection string for all of my datasets still point to the original ...
4
votes
1answer
132 views

Sql Server - Running a Job on Multiple servers

I am using SqlServer 2008. I have a Sql Server Job that checks Disk Space and emails admins if the space is less than 15% Instead of adding that Job to all servers is it Possible to run the Job on ...
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2answers
60 views

Quickly clone a database in SQL Server Management Studio

For testing purposes, I often have to clone databases (onto the same server). Currently I do this by creating a backup and restoring it as a new database. I would love to have such a functionality ...
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1answer
43 views

Incorrect unit allocation size. error comes when Tuning the Database

Here I am Using the SQL IDERA tool for checking the Index and performance of the Database, then i found below error, can any one tell what is it talking about. Incorrect unit allocation size. ...
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0answers
29 views

Severity 20 Error upon disconnecting Dedicated Administrator Connection

Starting working with Dedicated Administrator Connections on SQL Server 2008 R2 servers. All is working fine (once port 1434 was opened), but am getting severity 20 errors when I disconnect the admin ...
4
votes
2answers
92 views

How to change default database to all logins?

I'm bit new to SQL Server and I'm trying to script out Microsoft SQL Server (2005-2014) post installation activities and I got bit stuck on altering logins. Corporate policy states that none login ...
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2answers
36 views

Initial Discovery process

I am looking to better my knowledge without actually being in the field, I was wondering what initial steps you take when you are assuming the responsibility of a server with SQL-Server installed on ...
0
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1answer
65 views

What is the best design for storing courses subscription data?

Building an app that will manage lessons, students, courses. Each lesson belongs to a certain course. A student can subscribe to a single lesson or to a whole course. So it seems straightforward that ...
1
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1answer
54 views

DataBase Back Up - with a Not Null Column [closed]

Can I include a default value to be entered in the Not Null columns when I do database back ups ? If so How can I do that?
0
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0answers
43 views

MySQL Dynamic columns duplicate value workaround

As the title suggests i have the following code which transposes certain row values into field names, however the problem im having is that the values "closed" & "reopened" may appear in several ...
5
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2answers
405 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. ...
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24 views

Performance/Maintenance Implications of a Write Heavy Table In An Otherwise Normal “CRUD” Database

We have a small-ish (<100,000 rows) MySQL database (on Amazon RDS). Its supporting a fairly simple read heavy CRUD web application. Currently we're building out a web analytics system. It will ...
0
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1answer
123 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 ...
0
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1answer
111 views

Not receiving archivelogs from production to remote side

I have a scenario in which we have Designed data guard. Where we have 2 standby sides. One standby is located locally and 2nd standby is located on remote side. The distance between local and remote ...
2
votes
2answers
79 views

How should I (re) index the table while keeping the transaction log small?

I have a 170 GB table in a database. It has 70% fragmentation on its index (index has multiple columns in it). The last time I tried DBCC REINDEX the transaction log blew up in the hundreds of GBs. ...
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0answers
16 views

When importing with sqlite3, will the resulting database always be bitwise identical?

If I import a large set of data using the sqlite3 command-line utility on to different computers, will I get bitwise identical databases? For example - if I run a cryptographic hash against them, will ...
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2answers
72 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?
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51 views

Help with Joins - Cartesian Product

I have 5 regions that each contain 1 store and 1 warehouse. I have a table that contains the regions and corresponding stores and warehouses. I also have a table that lists the inventories of both ...
0
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1answer
20 views

Is this normal binary logging behaviour - maintaining one ever growing file despite expire_logs_days?

I have a Percona MySQL DB running on a dedicated server. I have in my.cnf # REPLICATION # log_bin=/var/lib/mysql/binlogs/mysql-bin expire_logs_days=7 My issue is that the log file mysql-bin.000001 ...
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0answers
75 views

RapidMiner Not Connecting To SQL Server Database Connection

I recently installed RapidMiner and tried connecting the application to my MS SQL database connection via the Manage Database Connections feature. I have followed video tutorials on integrating SQL ...
0
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1answer
71 views

SQL Server 2012 Enterprise: Copy Databases to New SQL Server, Same Domain, Users, Etc

Am having trouble with what seemingly should be an easy process. I'm a SQL Server n00b, so please be gentle and very explanatory with your answers. Currently, I have a SQL Server 2012 cluster ...
1
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1answer
92 views

Can we restore backup for standby from external hard drive with differnet drive labels

I am using windows server 2003 and Oracle database 10g R2 and i have taken the backup using RMAN of my primary database in Drive label E. The size of backup is 1.5TB. In my standby database i don't ...
2
votes
1answer
155 views

How to remove identity specification for multiple tables

I am having total 109 table in Database and now i am migrating to Amazon server with identity insert and now i want to remove auto increment column specification for all tables. How set auto increment ...
5
votes
1answer
334 views

Why not rebuild indexes with page count <1000?

I use Ola Hallengrens script for Index maintenance. Before I did that, I used the following query to see which indexes are fragmented most: SELECT dbschemas.[name] as 'Schema', dbtables.[name] as ...
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2answers
391 views

Check if database has changed to determine need to perform backup

I want to check SQL server database is modified or not. Reason to check database is modified is for backup(sql database backup) purpose. So I will be doing a full backup first and if any data ...
3
votes
1answer
103 views

Trace Flag 3688 not working on SQL Server 2014

We are using some third party tools that fill up the SQL Server logs with entries like: SQL Trace ID 1 was started by login "sa". SQL Trace ID 2 was started by login "XX\xxxxx". SQL Trace stopped. ...