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Oracle DBA Daily/Weekly/Monthly or Quarterly Routine Checklist/Tasks [on hold]

Recently I'v achieved Oracle Database 11g Administrator Certified Associate (OCA) after passing two exams (1Z0-051 & 1Z0-052), then I got a Job as an Oracle DBA in startup company. So, I would ...
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1answer
27 views

replication filtering replicate-rewrite and do-table Mysql 5.6 (innodb engine )

i have a master / slave replication setup based on statement based replication. On master database name DB1 , i have 5 tables and i want to replicate only two table on slave's database name DB2. Also ...
2
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2answers
34 views

avg_page_space_used_in_percent and fill factor

Trying to find an answer to this one but struggling. sys.dm_db_index_physical_stats contains column avg_page_space_used_in_percent. How does this fit in with the fill factor of an index? For ...
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2answers
76 views

FLUSH TABLE : can't execute the given command because you have active locked tables mysql

If i execute these queries one by one , all get fail except first : Query1 : flush table tablename1 with read lock; Works Query2 : flush table tablename2 with read lock; Error : can't ...
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26 views

One node in Percona Cluster isn't coming up with following error. kindly help

Whenever I try to start the services on this specific node it is failing with this error in log.Its is production system so Kindly help asap. [ERROR] WSREP: Node IP address not obtained from ...
2
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1answer
54 views

Shrinking Databases in a maintenance plan [duplicate]

Everything I've heard (including from Microsoft) says you should never shrink a database. Yet a software vendor (Symantec) is telling us to do DBCC SHRINKFILE on the SQL 2012 databases and logs ...
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2answers
50 views

PowerShell script to access oracle system views

I am using PowerShell script to access oracle 11g's system views as SELECT COUNT (*) AS COUNT FROM v$session but I keep getting "ORA-00942: table or view does not exist" I have created a user with ...
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2answers
41 views

MYSQL find if a default value has been set for a table (DateTime Specifically)

I am trying to internationalize a database, but there are places where the timestamp that gets set is using NOW() instead of UTC_TIMESTAMP(), and it's using Amazon's RDS with multiple MySQL servers. ...
2
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1answer
50 views

Ways to Reduce Database Size and possibly improve performace. Untouched enviroment.

I am new to an environment. The Databases are virtually untouched by a seasoned DBA. I am looking for ways to reduce DB size and possibly improve performance. Unfortunately, I only have WEb edition ...
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1answer
23 views

Replicate update statement as Insert in Mysql 5.6

I want to replicate all update statement from Master as a Insert at slave end. 1. Is it possible like in SQL Server ? 2 If so , how ? I want to do it because , if any record on master is ...
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1answer
45 views

How to restrict access to SQL Server user in some period of time

I have two SQL Server users 'A' and 'B'. I use user 'A' for ETL and 'B' for reporting. My requirements is to restrict user 'B' access while user 'A' performing ETL (Extraction, Transforming and ...
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62 views

Ticket booking engine

I am going to build and flight ticket booking system. My client has own planes. Under is basic concept of engine. Admin will add flights. Passengers,agents,franchises or admin will book the tickets. ...
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2answers
56 views

What are the necessary course requirements to become a DBA? [closed]

Before some of you say it is related to other posts, let me tell you that I am more interested about schooling and getting my Master's degree not necessary learn SQL and such. I just graduated with a ...
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1answer
29 views

restoring database using RMAN [closed]

if i have new data like new users and tables created after backing up database with RMAN , in case of restoring database will the operation affect my new data made after taking the backup ?
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2answers
65 views

DBA responsibilities: should they include suggesting a database engine for a new project? [closed]

I need your opinion on a subject. I have been working as DBA for a short time and I have been asked by the Project Manager which database engine I recommend for a new critical project. The options ...
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26 views

Unicode character replication MSSQL to MYSQL in Symmetric DS

I'm doing replication from MSSQL to MYSQL using symmetricds and it is working fine. Now , the problem is: In the SQL Server table , I have a column defined as NVARCHAR(20) which accepts unicode ...
5
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2answers
153 views

BI and DBA dev , where to start [closed]

I've read a lot about business intelligence development and database development, too. I have tried to work my way around a couple of courses on SQL Server 2008 however I feel kind of lost and I have ...
3
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2answers
218 views

Who is using a SQL Server database user credential?

I have a database user -- let's say "x" -- and I want to know how many Windows (desktop) users are using this database user (who2 or who is only give the current result, I want to know the entire ...
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1answer
17 views

For multiple mysql instance , fresh download required when one exist?

i need multiple instances of Mysql on same server. I had been through many links , but i confused here : What i have : MySQL 5.6 is already installed on my windows server A. Installed at : ...
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53 views

SQL Server 2012/SSIS - How to Import Partitioned Table Data to Reporting DB?

What's a recommended SSIS process flow for importing a daily partitioned table to a reporting DB table (SQL Server 2012)? Will be switching partitions on main DB to a staging table each day and ...
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2answers
46 views

SQL Server : CRUD Editor that will track data changes [closed]

I'm looking for a tool that allows CRUD changes to SQL Server data. Our company currently utilizes a product from Pro Data called DBU (database utility) to make IBM DB2 / AS400 changes. This tool ...
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27 views

Oracle NLS_CHARACTERSET mismatch while import

I have source Dump with NLS_CHARACTERSET WE8MSWIN1252 NLS_NCHAR_CHARACTERSET AL16UTF16 Requires the Target Databse System is with NLS_CHARACTERSET AL32UTF8 NLS_NCHAR_CHARACTERSET AL16UTF16 ...
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15 views

Syntax to change a DB2 timestamp from CST to EST

I am writing a code and the source are two DB2 databases. I see that both of them have a different timestamps. (one shows CST and another is EST). I need to make sure that both of them have similar ...
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1answer
149 views

Dealing with Difficult DBAs [closed]

At one point, test database deployments within my department were handled directly by the database developers. The typical process was that the developer would unit test their changes in the ...
0
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1answer
55 views

Restart the active node services without failover [closed]

On a 2 node cluster configuration, How to restart the SQL services on the Active node without failing over on to another node?
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35 views

Mysql - too many Deletion - Insertion

I'm creating crons for my OLAP sysetm, I have a cron that deletes the records from the summery table first and then insert the records in it again, Say Deleting 1 month records, and ...
2
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2answers
141 views

What is the recommended method to move databases?

I want to know the recommended method to move a database and data from dev to pre-prod to production in SQL Server. The databases are originally created in MS Access so some upsizing to SQL Server ...
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2answers
48 views

Restore a newer filegroup backup

So this is my set up. In our data warehouse we have mostly tables that are filled with data from a ETL-process. We do not take backup of these tables since we have an option to do a full reset using ...
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2answers
30 views

is it a good practice to ip block dev/test app servers from production database server? [closed]

I would like to do this as somewhat of a last line of defense as we will be replicating production to test regularly. Is this good practice?
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55 views

CREATE OLAP server

I have a MySQL database server along with replication server, i.e. OLTP system altogether. As I have very heavy data fetching queries for the decision making reports. I need to create data-ware house ...
3
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0answers
57 views

SQL Agent Jobs Automatically Disabled After Modifying Maintenance Plan

Hoping someone can shed some light. I modified a maintenance plan yesterday, to find out this morning (by using the last modified date from sysjobs) that all jobs related to the maintenance plan are ...
1
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2answers
56 views

Can SQL Server Transactional Replication do this?

We have a production server and a reporting server, with transactional replication in place to move all inserts/updates/deletes from production to reporting. We're using SQL Server 2008 R2. We have ...
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2answers
102 views

Why do we have negative length for character maximum length for geography and varchar(max) data types?

Why do we have negative length for character maximum length for geography and varchar(max) data types? Character_Maximum_length = - 1
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2answers
45 views

Get a user's rank from an equation, and then store it in the table

I'm working on a project for my database class, and I have a table called "accounts". It looks like What I want to do is have a stored procedure where it calculates the new ranks for each account. ...
0
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1answer
43 views

What is the risk of doing a rebuild to my indexes in sql server 2012?

What is the risk of doing a rebuild to my indexes in SQL Server 2012? I have to do a REBUILD, but I don't know what are the risks . The server is running and a lot of information is going in and out. ...
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77 views

MySQL replication: most important config parameters on slave for performance on master server?

This query is almost the same as this question. But in this case, a configuration to make the master perform faster or just the same. Case We have a Master-Slave setup on a Mysql 5.0.77 - MariaDB ...
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2answers
87 views

How can delete an orphaned temporary table on Mysql Innodb?

I was issuing an Alter table statement and suddenly the server crashed, Now i can not run any alter table to that table because it shows me the error 1050 and it says that a table named #sql1504d ...
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2answers
45 views

To what extent can we monitor jobs/suspended queries as DBO

Short Background: I work for company A, at company A we have a DBA that should not be. When we are tasked with items for troubleshooting which require quick turn around, it generally takes quite a ...
0
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1answer
77 views

What is contained in the controlfile of oracle database?

As we all know that controlfile contains datafile locations and redo log locations along with their names.It also contains dbname,timestamp,checkpoint info,log sequence number,rman backup info.In ...
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21 views

Why do I get this CMN_1021[ORA-03135: Connection lost to contact

My Informatica application throws this error not every time but randomly. Not sure of what is the root cause of this ..
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1answer
52 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
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1answer
47 views

Mysql JOIN with 25million rows

Recently I got stucked with a table where its grown to +25million and I have got a query that's doing a JOIN on it. The query take 2.5hours to execute even though I got Good 96GB RAM and RAID10 with ...
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51 views

Problem in ASM starting

iam working on wondows7 and oracle 11.2.0 this is my standalone system as i want to setup the ASM as i haeve createdthree logical Disk and ihave created parameter file for ASM but at the time of ...
0
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1answer
178 views

I am upgrading from 11.1.0.7.0 to 11.2.0.3 with R12.1.3 while pre upgrade/catupgrd.sql erroring out ORA-00600

While upgrading from 11.1.0.7.0 to 11.2.0.3 with R12.1.3, during running the pre upgrade script catupgrd.sql, it is erroring out ORA-00600: internal error code, arguments: [qcisSetPlsqlCtx:tzi ...
1
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1answer
98 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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1answer
141 views

Database simulator [closed]

I've been studing theory of database, but I can't have a concrete image on terms of functionality. I want to be a DBA, I'm studing for it so I want to understand how a database works. Is there any ...
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186 views

can Pgpool Work With Multi-master replication in PostgresPlus 9.3 AS?

My query is I have One application server and two database servers(multi-master setup with xDB-replication). Now How can i Connect to two different databases servers having different Ipaddress,Port ...
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47 views

Error “Slony-I creation script not avilable ; only joining possible” in SlonyI replication using pgadmin3

I am facing the above issue while Creating a base replication objects like database etc.. As a workaround i have done the changes like editing the options of Binary Paths in Pgadmin Console but no use ...
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25 views

SPExecuteSQL;1 keeps executing internally

Having a major issues with this procedure called SP_ExecuteSQL;1. It keeps executing internally in SQL Server 2000 with high utilization of CPU. When I pass its SPID in DBCC inputbuffer it shows as ...
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16 views

How can I update the amount on parentid

I'm using MySQL database,This is the first time that i handle this kind of project the Multi-Level Marketing.I am having problem in updating the amount of parentid if he gets paired means he has left ...