Sequence SQL Database Connector

Sequence® is a collection of libraries for automation of cross-application e-discovery and forensic workflows.

The SQL connector contains Steps to:

• Build connection strings
• Create tables
• Insert entities into tables as rows
• Read entities from tables
• Run arbitrary queries

The following flavors of SQL database are supported:

• MariaDb
• MS SQL Server
• MySQL
• Postgres
• SQLite

Creating Tables Using Schemas

Schemas are used to create tables and insert entities.

You can create a Schema from an existing table using SqlCreateSchemaFromTable

The following schema properties are used in creating tables and inserting entities

Property	Description
Name	Maps to the name of the SQL table.
AllowExtraProperties	Must be set to False
Properties	Dictionary Mapping column names to column details.

The following nested properties are also used

Property	Description
Type	The property type.
Multiplicity	Must be either UpToOne for a nullable property or ExactlyOne for a not null property.

This is an example of declaring a schema

- <Schema> = (
    Name: "MyTable"
    AllowExtraProperties: False
    Properties: (
      Id: (
        Type: SchemaPropertyType.Integer
        Multiplicity: Multiplicity.ExactlyOne
      )
      Name:(
        Type: SchemaPropertyType.String
        Multiplicity: Multiplicity.UpToOne
      )
    )
  )

Example

This is an example of a step that drops a table, recreates it, and inserts an entity.

- <ConnectionString> = CreateConnectionString
                         Server: "Server"
                         Database: "Database"
                         UserName: "UserName"
                         Password: "Password"
- <Schema> = (
    Name: "MyTable"
    AllowExtraProperties: False
    Properties: (
      Id: (
        Type: SchemaPropertyType.Integer
        Multiplicity: Multiplicity.ExactlyOne
      )
      Name:(
        Type: SchemaPropertyType.String
        Multiplicity: Multiplicity.UpToOne
      )
    )
  )
- SqlCommand
    ConnectionString: <ConnectionString>
    Command: "DROP TABLE IF EXISTS MyTable"
    DatabaseType: 'SQLite'
- SqlCreateTable
    ConnectionString: <ConnectionString>
    Schema: <Schema>
    DatabaseType: 'SQLite'
- SqlInsert
    ConnectionString: <ConnectionString>
    Entities: [
      (Id: 1 Name:'Name1' )
      (Id: 2 Name:'Name2')
    ]
    Schema: <Schema>
    DatabaseType: 'SQLite'

Documentation

https://sequence.sh

Download

https://sequence.sh/download

Try SCL and Core

https://sequence.sh/playground

Package Releases

Can be downloaded from the Releases page.

NuGet Packages

Release nuget packages are available from nuget.org.