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 Adobe Target data to Snowflake using the CData SSIS Components for Adobe Target 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 Adobe Target 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 Adobe Target source
Follow the steps below to specify properties required to connect to Adobe Target.
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Double-click the CData Adobe Target 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 Adobe Target Connection Manager, configure the connection properties, then test and save the connection.
To connect to Adobe Target, you must provide the Tenant property along with OAuth connection properties mentioned below. Note that while other connection properties can influence processing behavior, they do not affect the ability to connect.
To determine your Tenant name:
- Log in to Adobe Experience. The URL will look similar to: "https://experience.adobe.com/#/@mycompanyname/preferences/general-section".
- Extract the value after the "/#/@". In this example, it is "mycompanyname".
- Set the Tenant connection property to that value.
User Accounts (OAuth)
You must set AuthScheme to OAuthClient for all user account flows.
Note: Adobe authentication via OAuth requires updating your token every two weeks.
All Applications
CData provides an embedded OAuth application that simplifies OAuth authentication. Alternatively, you can create a custom OAuth application. Review Creating a Custom OAuth App in the Help documentation for more information.
Obtaining the OAuth Access Token
Set the following properties to connect:
- InitiateOAuth: Set to GETANDREFRESH to automatically perform the OAuth exchange and refresh the OAuthAccessToken as needed.
- OAuthClientId : Set to the client Id assigned when you registered your app.
- OAuthClientSecret : Set to the client secret assigned when you registered your app.
- CallbackURL : Set to the redirect URI defined when you registered your app. For example: https://localhost:3333
With these settings, the provider obtains an access token from Adobe Target, which it uses to request data. The OAuth values are stored in the location specified by OAuthSettingsLocation, ensuring they persist 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 Adobe Target Source Editor.
๐ Select the table to export (Salesforce is shown)
Configure the Snowflake destination
With the Adobe Target 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.