crystal-tds

A crystal native database driver for Microsoft SQL Server.

The C implementation (freetds), the the Java implementation (jTDS) but also the Wireshark Protocol Plugin for TDS were a real treasure trove for the realization of this project.

Installation

1. Add the dependency to your shard.yml:

   dependencies:
    tds:
      github: wonderix/crystal-tds

2. Run shards install

Usage

This driver now uses the crystal-db project. Documentation on connecting, querying, etc, can be found at:

• https://crystal-lang.org/docs/database/
• https://crystal-lang.org/docs/database/connection_pool.html

Supported data types

• BIGINT
• BIT
• DATE
• DATETIME
• DATETIME2
• DECIMAL
• FLOAT
• INT
• NTEXT
• NUMERIC
• NVARCHAR
• REAL
• SMALLDATETIME
• SMALLINT
• TEXT
• TINYINT
• VARCHAR

Restriction

Have a look at the issue tracker to get an overview over all restrictions.

Development

• Install Docker

Contributing

1. Fork it (https://github.com/wonderix/crystal-tds/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• Ulrich Kramer - creator and maintainer

Testing

• Run Microsoft SQL Server inside docker

  docker run -e 'ACCEPT_EULA=Y' -e 'SA_PASSWORD=My-Secret-Pass' -e 'MSSQL_PID=Express' -p 1433:1433 -d mcr.microsoft.com/mssql/server

• On Mac M1 use

  docker run -e "ACCEPT_EULA=1" -e "MSSQL_SA_PASSWORD=My-Secret-Pass" -e "MSSQL_PID=Developer" -e "MSSQL_USER=SA" -p 1433:1433 -d --name=sql mcr.microsoft.com/azure-sql-edge

  or

  podman machine start
  podman run -e "ACCEPT_EULA=1" -e "MSSQL_SA_PASSWORD=My-Secret-Pass" -e "MSSQL_PID=Developer" -e "MSSQL_USER=SA" -p 1433:1433 -d --name=sql mcr.microsoft.com/azure-sql-edge

• Run tests

  crystal spec