Software Applications Programming Errors and solutions.

This is Career path for Software.. Salary is depends on experience . I can not define salary for all level but As I am technical so I can define probable salary for Axapta Technical Experience wise. 1.Ax Fresher Technical- Starting salary should be 3.5 lacs per year and most companies use bond sign also.. 2. If person is experience for upto 3 year than salary range goes to 4.5 lacs to 7 lacs . 3 If person experience is 4 to 10 year  then salary range goes to 7 to 17 lacs.  4. If experience is more that 10 year then salary goes to 18 lacs to 25 lacs. 5. If person reached to 25 lacs then chances of salary start for decrements. Its also depend upon institute and course salary may have variation. 

1. Buffer pool too small 2. Inadequate Disk I/O subsystem 3. I/O bottleneck 4. Missing Indexes 5. Low index usage like  poorly design indexes 6. Temp DB contention 7. Data and Log file are on same drive 8. Slow network 9. Client side performance issue 10. Query plan not updated or poor 11.If Update statistics not updated 12.Memory configuration setting not done properly 13.Lock page memory not configured with sql service user.

What is LSN chain in SQL Every trasaction in sql server is identified by lsn number .means log sequence number If LSN is broken then u may not able to restore it. Hope LSN needed in order to perform restoration. LSN means log sequence number. Log file consists of internally log sequence number. If LSN is miss match we can't to restore data at point of time. We can restore For e.g you have 1 full back and 4 log files, suppose if ur LSN broken on 3rd log file, then we can restore up to log file 2 rest all we can't restore it.

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Checkpoints occur in the following situations: 1. A CHECKPOINT statement is explicitly executed. A checkpoint occurs in the current database for the connection. 2. A minimally logged operation is performed in the database; for example, a bulk-copy operation is performed on a database that is using the Bulk-Logged recovery model. 3. Database files have been added or removed by using ALTER DATABASE. 4. An instance of SQL Server is stopped by a SHUTDOWN statement or by stopping the SQL Server (MSSQLSERVER) service. Either action causes a checkpoint in each database in the instance of SQL Server. 5. An instance of SQL Server periodically generates automatic checkpoints in each database to reduce the time that the instance would take to recover the database. 6. A database backup is taken. 7. An activity requiring a database shutdown is performed. For example, AUTO_CLOSE is ON and the last user connection to the database is closed, or a database option change is made that req...

Question -What is  max degree of parallelism in SQL server and how can we find the parallelism which has been in  SQL  server Answer : When we execute a query number of processes use in parallel  execution Parallelism is to execute a query Some process is required if the process required more time to execute the query. So we have to enable parallelism. In parallelism we mention max degree of parallelism is number of processes is you are allowed to execute that query nothing else. When this parallelism is applied to a query that query cost reach to cost threshold for parallelism by default its value is zero. You can set it to 1 or another number based on hardware configuration for Memory. Example sp_configure 'show advanced options', 1; GO RECONFIGURE WITH OVERRIDE; GO sp_configure 'max degree of parallelism', 1; GO RECONFIGURE WITH OVERRIDE; GO

In this clip shows you Practical Tips to Reduce SQL Server Database annd Table Size . The  Steps are provided but process is taking time so final result not shown . You can check from your end by applying steps and it will be for your practice exercise also. How to Shrink MDF,LDF Database Data  and log File in SQL Server and How to check size of all tables in database. Script is  provided to get all table records count,used space,unused space etc.   You can check single as well as multiple table details by checking query in script. If you clean log files before database shrinking then you will able to decrease more size for database. Database size increased due to daily transaction by users and log file size getting huge so you can see this clip to reduce the size of database to improve disk space. You can also set batch job to do in automatically based on time frame you given for batch job in SQL. You can visit below online clip to get more details....