Create and run SQL Server Agent jobs on Linux

Άρθρο
11/18/2024

Applies to: SQL Server - Linux

SQL Server jobs are used to regularly perform the same sequence of commands in your SQL Server database. This tutorial provides an example of how to create a SQL Server Agent job on Linux using both Transact-SQL and SQL Server Management Studio (SSMS).

Install SQL Server Agent on Linux
Create a new job to perform daily database backups
Schedule and run the job
Perform the same steps in SSMS (optional)

For known issues with SQL Server Agent on Linux, see the Release notes for SQL Server 2017 on Linux.

Prerequisites

The following prerequisites are required to complete this tutorial:

Linux machine with the following prerequisites:

The following prerequisites are optional:

Windows machine with SSMS:
- Download SQL Server Management Studio (SSMS) for optional SSMS steps.

Enable SQL Server Agent

To use SQL Server Agent on Linux, you must first enable SQL Server Agent on a machine that already has SQL Server installed.

To enable SQL Server Agent, follow the step below.

sudo /opt/mssql/bin/mssql-conf set sqlagent.enabled true

Restart SQL Server with the following command:
```
sudo systemctl restart mssql-server
```

Note

Starting with SQL Server 2017 (14.x) CU 4, SQL Server Agent is included with the mssql-server package and is disabled by default. For Agent set up prior to CU 4, see Install SQL Server Agent on Linux.

Create a sample database

Use the following steps to create a sample database named SampleDB. This database is used for the daily backup job.

On your Linux machine, open a bash terminal session.

Use sqlcmd to run a Transact-SQL CREATE DATABASE command.

/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -Q 'CREATE DATABASE SampleDB'

Verify the database is created by listing the databases on your server.

/opt/mssql-tools/bin/sqlcmd -S localhost -U sa -Q 'SELECT name FROM sys.databases'

Create a job with Transact-SQL

The following steps create a SQL Server Agent job on Linux with Transact-SQL commands. The job runs a daily backup of the sample database, SampleDB.

Tip

You can use any T-SQL client to run these commands. For example, on Linux you can use Install the SQL Server command-line tools sqlcmd and bcp on Linux or SQL Server extension for Visual Studio Code. From a remote Windows Server, you can also run queries in SQL Server Management Studio (SSMS) or use the UI interface for job management, which is described in the next section.

Use sp_add_job to create a job named Daily SampleDB Backup.

-- Adds a new job executed by the SQLServerAgent service
-- called 'Daily SampleDB Backup'
USE msdb;
GO

EXECUTE dbo.sp_add_job @job_name = N'Daily SampleDB Backup';
GO

Call sp_add_jobstep to create a job step that creates a backup of the SampleDB database.

EXECUTE sp_add_jobstep
    @job_name = N'Daily SampleDB Backup',
    @step_name = N'Backup database',
    @subsystem = N'TSQL',
    @command = N'BACKUP DATABASE SampleDB TO DISK = \
                     N''/var/opt/mssql/data/SampleDB.bak'' WITH NOFORMAT, NOINIT, \
                     NAME = ''SampleDB-full'', SKIP, NOREWIND, NOUNLOAD, STATS = 10', @retry_attempts = 5, @retry_interval = 5;
GO

Then create a daily schedule for your job with sp_add_schedule.

-- Creates a schedule called 'Daily'
EXECUTE dbo.sp_add_schedule
    @schedule_name = N'Daily SampleDB',
    @freq_type = 4,
    @freq_interval = 1,
    @active_start_time = 233000;

USE msdb;
GO

Attach the job schedule to the job with sp_attach_schedule.

-- Sets the 'Daily' schedule to the 'Daily SampleDB Backup' Job
EXECUTE sp_attach_schedule
    @job_name = N'Daily SampleDB Backup',
    @schedule_name = N'Daily SampleDB';
GO

Use sp_add_jobserver to assign the job to a target server. In this example, the target is the local server.

EXECUTE dbo.sp_add_jobserver
    @job_name = N'Daily SampleDB Backup',
    @server_name = N'(local)';
GO

Start the job with sp_start_job.

EXECUTE dbo.sp_start_job N' Daily SampleDB Backup';
GO

Create a job with SSMS

You can also create and manage jobs remotely using SQL Server Management Studio (SSMS) on Windows.

Start SSMS on Windows and connect to your Linux SQL Server instance. For more information, see Use SQL Server Management Studio on Windows to manage SQL Server on Linux.
Verify that you have created a sample database named SampleDB.
Verify that SQL Agent was Install SQL Server Agent on Linux and configured correctly. Look for the plus sign next to SQL Server Agent in the Object Explorer. If SQL Server Agent isn't enabled, try restarting the mssql-server service on Linux.
Create a new job.
Give your job a name and create your job step.
Specify what subsystem you want to use and what the job step should do.
Create a new job schedule.
Start your job.