Software Applications Programming Errors and solutions.

How to change time to be 1:30:00 am/pm Instead of 13:30:00 ? You can try below queries. SELECT substring(convert(varchar(20), GetDate(), 9), 13, 5) + ' ' + substring(convert(varchar(30), GetDate(), 9), 25, 2) declare @time time = '13:30:00' SELECT convert(varchar, @time, 22)

If the database is in single user mode then You can bring that database to normal state following way. ALTER DATABASE Database_Name SET MULTI_USER Go to ssms ->right click on database properties--> select options then scroll down to "Restrict Access" then change it MULTI_USER

Service Pack, Cumulative Update and Hot Fix are all patches to the bugs faced by Users/Vendors. Severity and No. Of Users facing problem will flow down from Higher to Lower i.e, Service Pack (Higher) --> CU (Medium) --> Hot Fix (Lower).

These are the task list that must be done by a DBA on daily basis. 1) Check System Event Logs and SQL Server Error Logs for unusual events. 2) Verify that all scheduled jobs have run successfully. 3) Confirm that backups have been made and successfully and moved to the backup storage or secure location. 4) Monitor disk space to make sure SQL Servers will not run out of disk space. 5) Periodically monitor performance of database and system using both System Monitor and SQL Server Profiler. 6) Monitor and identify blocking issues. 7) Keep a log of any changes you make to servers, instance setting, database setting and monitoring script. 8) Create SQL Server alerts to notify you of problems, and e-mailed to you. Take action as  needed. 9) Regularly restore backups to a test server in order to verify that you can restore them. Summary: Installing DB software Creating databases Performing upgrades of the database and software to new release levels Starting u

When index are rebuild that means the old indexes on the table are dropped and new indexes on the table are created. Due to the creation of the indexes on the table all the data is organised in the leaf level (cluster index) and organised simultaneously. Thus maximum the number of rows in your table , maximum will be the page count and maximum will be the time taken in rebuilding the index. Indexing is nothing but ordering of pages, thus it depends on page count

Data center is used to store all our servers and need to maintain (power supply,network,connectivity,AC and others) those servers from the DC in a specified safe environment with all the facilities.. without proper approvals even CEO will also not allowed into the DC's for some security reasons.

Following can be SQL DBA Checklist on daily,weekly and monthly basis. 1.SQL DBA daily checklist can include Database backup status, Database integrity checks, failed jobs. 2.Weekly checklist can include index reorganization, update stats etc . 3.Monthly checklist can include Restoration drill for critical databases to ensure backup's availability in case of any unusual happening etc.these are general points.although it depends on current environment and issues how you define your checklist as a DBA.