Latency vs Throughput

Latency is about how fast a request can travel from one point to another.
Example: For sending 100Mb of data, the API will take one hour.

Throughput is how much data can travel from one point to another in a specific time frame.
Example: in one hour, this API can transmit 100Mb of data

 

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T-SQL script to create SQL Job for daily database backup

This script will create an SQL Server Agent job, which will take daily database backup to a folder with date appended in the filename.


DECLARE @job varchar(100) = 'Backup_testdb_daily' -- Name of Job
DECLARE @db varchar(100) = 'testdb' -- DB to backup
DECLARE @bakfile varchar(100) = 'd:\_temp\' + @db -- Backup file path

DECLARE @date varchar(8) = '20180720' -- Job Start date
DECLARE @time varchar(8) = '135400' -- Job run time. Eg: Run At 23rd hour

--------------------------------------------------------------------

DECLARE @cmd varchar(200) = CONCAT ('DECLARE @bakfile varchar(200) = ''' , @bakfile , ''' + ''_'' + convert(varchar(100),GetDate(),112) + ''.bak'';') +

CONCAT('BACKUP DATABASE ', @db, ' TO DISK = @bakfile');

USE msdb

EXEC dbo.sp_add_job
@job_name = @job;

EXEC sp_add_jobstep
@job_name = @job,
@step_name = 'Backup database',
@subsystem = 'TSQL',
@command = @cmd

EXEC sp_add_jobschedule
@job_name = @job,
@name = 'DB Backup Schedule',
@freq_type = 4, -- daily
@freq_interval = 1,
@active_start_date = @date,
@active_start_time = @time

EXEC dbo.sp_add_jobserver
@job_name = @job,
@server_name = @@SERVERNAME

Change Server Mode in SSAS

You can change the Analysis Services mode from Multidimensional Mode to Tabular Mode or vice versa easily by following below steps. I did this on SQL Server Analysis Services 2016 version.

Step 1: Edit msmdsrv.ini file

Go to folder X:\Program Files\Microsoft SQL Server\MSAS13.MSSQLSERVER\OLAP\Config

Change X: with your correct installation drive.

Open file msmdsrv.ini in notepad

It is recommended to take a backup first. There is a chance this folder require additional permission to edit so I would suggest you to open the file “as Administrator”

Find the tag <DeploymentMode>0</DeploymentMode>

If your current mode is Multidimensional then the DeploymentMode value will be 0 or if Tabular, then it will be 2. Change it to 0 or 2 as per your requirement.

Step 2: Restart SSAS

Open SQL Server Configuration Manager from Start menu and
Right click on “SQL Server Analysis Services” and click “Restart” in the context menu.

Finished! Try connecting to SSAS instance in SSMS to test.