Snowflake is a leading cloud data warehouse and a popular backbone for enterprise BI, analytics, data management, and governance initiatives. Snowflake offers features such as data sharing, real-time data processing, and secure data storage which makes it a common choice for cloud data consolidation.
The CData SSIS Components enhance SQL Server Integration Services by enabling users to easily import and export data from various sources and destinations.
In this article, we explore the data type mapping considerations when exporting to Snowflake and walk through how to migrate Microsoft Planner data to Snowflake using the CData SSIS Components for Microsoft Planner and Snowflake.
Data Type Mapping
| Snowflake Schema |
CData Schema |
|
NUMBER, DECIMAL, NUMERIC, INT, INTEGER, BIGINT, SMALLINT, TINYINT, BYTEINT
|
decimal
|
|
DOUBLE, FLOAT, FLOAT4, FLOAT8, DOUBLEPRECISION, REAL
|
real
|
|
VARCHAR, CHAR, STRING, TEXT, VARIANT, OBJECT, ARRAY, GEOGRAPHY
|
varchar
|
|
BINARY, VARBINARY
|
binary
|
|
BOOLEAN
|
bool
|
|
DATE
|
date
|
|
DATETIME, TIMESTAMP, TIMESTAMP_LTZ, TIMESTAMP_NTZ, TIMESTAMP_TZ
|
datetime
|
|
TIME
|
time
|
Special Considerations
Prerequisites
Create the project and add components
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Open Visual Studio and create a new Integration Services Project.
๐ Create the SSIS project
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Add a new Data Flow Task to the Control Flow screen and open the Data Flow Task.
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Add a CData Microsoft Planner Source control and a CData Snowflake Destination control to the data flow task.
๐ Add the source and destination controls (Salesforce is shown)
Configure the Microsoft Planner source
Follow the steps below to specify properties required to connect to Microsoft Planner.
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Double-click the CData Microsoft Planner Source to open the source component editor and add a new connection.
๐ Open the source component editor (Salesforce is shown)
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In the CData Microsoft Planner Connection Manager, configure the connection properties, then test and save the connection.
You can connect without setting any connection properties for your user credentials. Below are the minimum connection properties required to connect.
- InitiateOAuth: Set this to GETANDREFRESH. You can use InitiateOAuth to avoid repeating the OAuth exchange and manually setting the OAuthAccessToken.
- Tenant (optional): Set this if you wish to authenticate to a different tenant than your default. This is required to work with an organization not on your default Tenant.
When you connect the Driver opens the MS Planner OAuth endpoint in your default browser. Log in and grant permissions to the Driver. The Driver then completes the OAuth process.
- Extracts the access token from the callback URL and authenticates requests.
- Obtains a new access token when the old one expires.
- Saves OAuth values in OAuthSettingsLocation to be persisted across connections.
๐ Configure the source connection (Salesforce is shown)
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After saving the connection, select "Table or view" and select the table or view to export into Snowflake, then close the CData Microsoft Planner Source Editor.
๐ Select the table to export (Salesforce is shown)
Configure the Snowflake destination
With the Microsoft Planner Source configured, we can configure the Snowflake connection and map the columns.
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Double-click the CData Snowflake Destination to open the destination component editor and add a new connection.
๐ Open the destination component editor
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In the CData Snowflake Connection Manager, configure the connection properties, then test and save the connection.
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The component supports Snowflake user authentication, federated authentication, and SSL client authentication. To authenticate, set User and Password, and select the authentication method in the AuthScheme property. Starting with accounts created using Snowflakeโs bundle 2024_08 (October 2024), password-based authentication is no longer supported due to security concerns. Instead, use alternative authentication methods such as OAuth or Private Key authentication.
Other helpful connection properties
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QueryPassthrough: When this is set to True, queries are passed through directly to Snowflake.
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ConvertDateTimetoGMT: When this is set to True, the components will convert date-time values to GMT, instead of the local time of the machine.
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IgnoreCase: A session parameter that specifies whether Snowflake will treat identifiers as case sensitive. Default: false(case is sensitive).
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BindingType: There are two kinds of binding types: DEFAULT and TEXT. DEFAULT uses the binding type DATE for the Date type, TIME for the Time type, and TIMESTAMP_* for the Timestamp_* type. TEST uses the binding type TEXT for Date, Time, and Timestamp_* types.
๐ Configure the destination connection
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After saving the connection, select a table in the Use a Table menu and in the Action menu, select Insert.
๐ Choose the destination table
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On the Column Mappings tab, configure the mappings from the input columns to the destination columns.
๐ Map the columns (Salesforce is shown)
Run the project
You can now run the project. After the SSIS Task has finished executing, data from your SQL table will be exported to the chosen table.