Microsoft SQL Server with Linux and Docker
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The document discusses the use of Microsoft SQL Server on Linux, suggesting PostgreSQL for larger projects and SQLite for trivial tasks while acknowledging certain scenarios where SQL Server may be beneficial. It provides detailed installation instructions for running SQL Server in a Docker container, including commands for running and accessing the server. The summary concludes that while SQL Server can function on Linux, alternatives like PostgreSQL or SQLite are often preferable.
![Sqlcmd online help
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$ sudo docker exec -it mssql
/opt/mssql-tools/bin/sqlcmd -?
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Useful options:
-b if SQL command fails, abort and set exit code
-S host[,port]
-U username
-P password
-Q run SQL command and exit
-q run SQL command and remain in sqlcmd console
-i some.sql to run SQL commands stored in fle](https://image.slidesharecdn.com/microsoftsqlserverwithlinuxanddocker-180428173844/85/Microsoft-SQL-Server-with-Linux-and-Docker-9-320.jpg)
Microsoft SQL Server with Linux and Docker
- 2. Why would I want to use Microsoft SQL Server on Linux? ● You don’t. Instead, use PostgreSQL (for larger projects) or sqllite (for trivial things). ● When does it still make sense? – When you locally develop on Linux for customers using Windows and MS SQL. – When you want to educate yourself. – When you want to irritate people on Linuxtage!
- 3. Why would I want to use Docker for Microsoft SQL Server? ● Less clutter after installation. ● Simple updates of SQL server → Container images are maintained by Microsoft. ● Because Docker is hip!
- 4. Install docker ● Depends on several things: https://docs.docker.com/install/ ● Typically community edition (CE) sufces. ● With Ubuntu: use Ubuntu Software shop
- 5. Install MS SQL Server ● From docker store (requires login): https://store.docker.com/images/mssql-server-linu x ● From command line: https://docs.microsoft.com/en-us/sql/linux/quickst art-install-connect-docker?view=sql-server-linux-2 017 $ sudo docker pull microsoft/mssql-server- linux:2017-latest
- 6. Run the server ● sudo docker run -e 'ACCEPT_EULA=Y' -e 'MSSQL_SA_PASSWORD=x2-B3.k4' -p 1401:1433 --name mssql -d microsoft/mssql-server-linux:2017-latest ● See also: quick installation guide. ● Consider changing SA password stored in environment variable as described there.
- 7. Running commands in the container ● Open a shell in the container: sudo docker exec -it mssql "bash" ● Send a single shell command to the container: sudo docker exec -it mssql echo hello world
- 8. Execute SQL commands ● Use command line tool sqlcmd ● Full path: /opt/mssql-tools/bin/sqlcmd ● Has various options
- 9. Sqlcmd online help ● $ sudo docker exec -it mssql /opt/mssql-tools/bin/sqlcmd -? ● Useful options: -b if SQL command fails, abort and set exit code -S host[,port] -U username -P password -Q run SQL command and exit -q run SQL command and remain in sqlcmd console -i some.sql to run SQL commands stored in fle
- 10. Create a new database ● sudo docker exec -it mssql /opt/mssql-tools/bin/sqlcmd -S localhost -U SA -P x2-B3.k4 -b -Q "create database linuxtage" ● Creates data base on container volume → will be deleted upon docker rm <image> ● Use more command line options to create database on local disk
- 11. Run with mounted local volume ● sudo mkdir /home/roskakori/mssql ● sudo docker run -e 'ACCEPT_EULA=Y' -e 'MSSQL_SA_PASSWORD=x2-B3.k4' -p 1401:1433 -v /home/roskakori/mssql:/var/opt/mssql --name mssql -d microsoft/mssql-server-linux:2017-latest
- 12. Create database on local volume ● sudo docker exec -it mssql /opt/mssql-tools/bin/sqlcmd -S localhost -U SA -P x2-B3.k4 -b -Q "create database linuxtage on (name=’ltg_data’, filename=’/var/opt/mssql/ltg.dat’) log on (name=’ltg_log’, filename=’/var/opt/mssql/ltg.log’) "
- 13. How to access from software ● On docker, MS SQL runs on port 1433 ● Locally mapped to port 1401 ● To access from local you need drivers – JDBC driver: https://docs.microsoft.com/en-us/sql/connect/jdbc/microsoft-jdbc-driver-for-sq l-server?view=sql-server-2017 – ODBC driver for Linux https://docs.microsoft.com/en-us/sql/connect/odbc/linux-mac/installing-the-mic rosoft-odbc-driver-for-sql-server?view=sql-server-2017 – Avoid jTDS, has issues with modern servers and is not really maintained any more ● Supported by various programming languages – Java: JDBC driver – Python: pyodbc
- 14. Install local ODBC for MS SQL ● See Installing the Microsoft ODBC Driver for SQL Server on Linux and macOS ● Example for Ubuntu 17.10: – curl >/tmp/microsoft.asc https://packages.microsoft.com/keys/microsoft.asc – sudo apt-key add </tmp/microsoft.asc – curl >/tmp/prod.list https://packages.microsoft.com/confg/ubuntu/17.10/prod.list – sudo cp /tmp/prod.list /etc/apt/sources.list.d/mssql-release.list – sudo apt-get update – sudo ACCEPT_EULA=Y apt-get install msodbcsql17 – sudo ACCEPT_EULA=Y apt-get install mssql-tools – echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profle – echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc – source ~/.bashrc
- 15. Local sqlcmd to docker ● Port 1401 must be specifed as part of the hostname ● Unintuitive syntax using comma ● sqlcmd -S localhost,1401,1401 -U SA -P x2-B3.k4 -b -Q "select 'hello world'"
- 16. Summary ● MS SQL on Linux – It can be done. – It does work. ● Use postgreSQL if possible. ● Use MS SQL if necessary. ● Use sqlite if appropriate. ● Don’t use MySQL / MariaDB.