Hi, Need to compare two folders / File systems permissions & time stamps including sub folders and files. Kindly let me know if any commands avail The UNIX and Linux Forums Need to compare two folder / FS permissions. Hi, Need to compare two folders / File systems permissions & time stamps including sub folders and files. Kindly let me know if any commands avail The UNIX and Linux Forums.

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APPLIES TO: SQL Server (Linux only) Azure SQL Database Azure Synapse Analytics (SQL DW) Parallel Data Warehouse

In this quickstart, you install SQL Server 2017 or SQL Server 2019 on Red Hat Enterprise Linux (RHEL). You then connect with sqlcmd to create your first database and run queries.

In this quickstart, you install SQL Server 2019 on Red Hat Enterprise Linux (RHEL) 8. You then connect with sqlcmd to create your first database and run queries.

Tip

This tutorial requires user input and an internet connection. If you are interested in the unattended or offline installation procedures, see Installation guidance for SQL Server on Linux.

Prerequisites

You must have a RHEL 7.3, 7.4, 7.5, 7.6, or 8 machine with at least 2 GB of memory.

You must have a RHEL 7.3, 7.4, 7.5, or 7.6 machine with at least 2 GB of memory.

To install Red Hat Enterprise Linux on your own machine, go to https://access.redhat.com/products/red-hat-enterprise-linux/evaluation. You can also create RHEL virtual machines in Azure. See Create and Manage Linux VMs with the Azure CLI, and use --image RHEL in the call to az vm create.

If you have previously installed a CTP or RC release of SQL Server, you must first remove the old repository before following these steps. For more information, see Configure Linux repositories for SQL Server 2017 and 2019.

For other system requirements, see System requirements for SQL Server on Linux.

Install SQL Server

To configure SQL Server on RHEL, run the following commands in a terminal to install the mssql-server package:

1. Download the Microsoft SQL Server 2017 Red Hat repository configuration file:

   Tip

   If you want to install SQL Server 2019 , you must instead register the SQL Server 2019 repository. Use the following command for SQL Server 2019 installations:

2. Run the following commands to install SQL Server:

3. After the package installation finishes, run mssql-conf setup and follow the prompts to set the SA password and choose your edition.

   Tip

   The following SQL Server 2017 editions are freely licensed: Evaluation, Developer, and Express.

   Note

   Make sure to specify a strong password for the SA account (Minimum length 8 characters, including uppercase and lowercase letters, base 10 digits and/or non-alphanumeric symbols).

4. Once the configuration is done, verify that the service is running:

5. To allow remote connections, open the SQL Server port on the firewall on RHEL. The default SQL Server port is TCP 1433. If you are using FirewallD for your firewall, you can use the following commands:

At this point, SQL Server is running on your RHEL machine and is ready to use!

Install SQL Server

Note

The following commands for SQL Server 2019 points to the RHEL 8 repository. RHEL 8 does not come preinstalled with python2, which is required by SQL Server. For more information, see the following blog on installing python2 and configuring it as the default interpreter: https://www.redhat.com/en/blog/installing-microsoft-sql-server-red-hat-enterprise-linux-8-beta.

If you are using RHEL 7, change the path below to /rhel/7 instead of /rhel/8.

To configure SQL Server on RHEL, run the following commands in a terminal to install the mssql-server package:

1. Download the Microsoft SQL Server 2019 Red Hat repository configuration file:

2. Run the following commands to install SQL Server:

3. After the package installation finishes, run mssql-conf setup and follow the prompts to set the SA password and choose your edition.

   Note

   Make sure to specify a strong password for the SA account (Minimum length 8 characters, including uppercase and lowercase letters, base 10 digits and/or non-alphanumeric symbols).

4. Once the configuration is done, verify that the service is running:

5. To allow remote connections, open the SQL Server port on the firewall on RHEL. The default SQL Server port is TCP 1433. If you are using FirewallD for your firewall, you can use the following commands:

At this point, SQL Server 2019 is running on your RHEL machine and is ready to use!

Install the SQL Server command-line tools

To create a database, you need to connect with a tool that can run Transact-SQL statements on the SQL Server. The following steps install the SQL Server command-line tools: sqlcmd and bcp.

1. Download the Microsoft Red Hat repository configuration file.

2. If you had a previous version of mssql-tools installed, remove any older unixODBC packages.

3. Run the following commands to install mssql-tools with the unixODBC developer package.

4. For convenience, add /opt/mssql-tools/bin/ to your PATH environment variable. This enables you to run the tools without specifying the full path. Run the following commands to modify the PATH for both login sessions and interactive/non-login sessions:

Install the SQL Server command-line tools

To create a database, you need to connect with a tool that can run Transact-SQL statements on the SQL Server. The following steps install the SQL Server command-line tools: sqlcmd and bcp.

1. Download the Microsoft Red Hat repository configuration file.

2. If you had a previous version of mssql-tools installed, remove any older unixODBC packages.

3. Run the following commands to install mssql-tools with the unixODBC developer package.

4. For convenience, add /opt/mssql-tools/bin/ to your PATH environment variable. This enables you to run the tools without specifying the full path. Run the following commands to modify the PATH for both login sessions and interactive/non-login sessions:

Connect locally

The following steps use sqlcmd to locally connect to your new SQL Server instance.

1. Run sqlcmd with parameters for your SQL Server name (-S), the user name (-U), and the password (-P). In this tutorial, you are connecting locally, so the server name is localhost. The user name is SA and the password is the one you provided for the SA account during setup.

   Tip

   You can omit the password on the command line to be prompted to enter it. Super mario bros wii apk.

   Tip

   If you later decide to connect remotely, specify the machine name or IP address for the -S parameter, and make sure port 1433 is open on your firewall.

2. If successful, you should get to a sqlcmd command prompt: 1>.

3. If you get a connection failure, first attempt to diagnose the problem from the error message. Then review the connection troubleshooting recommendations.

Create and query data

The following sections walk you through using sqlcmd to create a new database, add data, and run a simple query.

Create a new database

The following steps create a new database named TestDB.

1. From the sqlcmd command prompt, paste the following Transact-SQL command to create a test database:

2. On the next line, write a query to return the name of all of the databases on your server:

3. The previous two commands were not executed immediately. You must type GO on a new line to execute the previous commands:

Tip

To learn more about writing Transact-SQL statements and queries, see Tutorial: Writing Transact-SQL Statements.

Insert data

Next create a new table, Inventory, and insert two new rows.

1. From the sqlcmd command prompt, switch context to the new TestDB database:

2. Create new table named Inventory:

3. Insert data into the new table:

4. Type GO to execute the previous commands:

Select data

Now, run a query to return data from the Inventory table.

1. From the sqlcmd command prompt, enter a query that returns rows from the Inventory table where the quantity is greater than 152:

2. Execute the command:

Exit the sqlcmd command prompt

To end your sqlcmd session, type QUIT:

Performance best practices

After installing SQL Server on Linux, review the best practices for configuring Linux and SQL Server to improve performance for production scenarios. For more information, see Performance best practices and configuration guidelines for SQL Server on Linux.

Cross-platform data tools

In addition to sqlcmd, you can use the following cross-platform tools to manage SQL Server:

Azure Data Studio	A cross-platform GUI database management utility.
Visual Studio Code	A cross-platform GUI code editor that run Transact-SQL statements with the mssql extension.
PowerShell Core	A cross-platform automation and configuration tool based on cmdlets.
mssql-cli	A cross-platform command-line interface for running Transact-SQL commands.

Connecting from Windows

SQL Server tools on Windows connect to SQL Server instances on Linux in the same way they would connect to any remote SQL Server instance.

If you have a Windows machine that can connect to your Linux machine, try the same steps in this topic from a Windows command-prompt running sqlcmd. Just verify that you use the target Linux machine name or IP address rather than localhost, and make sure that TCP port 1433 is open. If you have any problems connecting from Windows, see connection troubleshooting recommendations.

For other tools that run on Windows but connect to SQL Server on Linux, see:

Other deployment scenarios

For other installation scenarios, see the following resources:

Upgrade	Learn how to upgrade an existing installation of SQL Server on Linux
Uninstall	Uninstall SQL Server on Linux
Unattended install	Learn how to script the installation without prompts
Offline install	Learn how to manually download the packages for offline installation

Tip

For answers to frequently asked questions, see the SQL Server on Linux FAQ.

Next steps

SQL Toolbelt Essentials includes the following products:. SQL Compare Pro - Compare and synchronize database schemas. SQL Data Compare Pro - Compare and synchronize database contents. SQL Source Control - Connect your databases to your source control system. SQL Prompt - Write, format, and refactor SQL effortlessly. SQL Search - Search your database quickly in SQL Server Management Studio. SQL Data Generator - Generate realistic test data fast, based on column and table names.

SQL Doc.