In this article
Overview
You can use this Snap to execute an AlloyDB update with the given properties.
Updates are batched up until the account's batch size property or until the structure of the update statement changes. An update statement will change if an incoming document contains different keys than a previous document.
Snap Type
AlloyDB Update Snap is a Read Snap.
Prerequisites
None.
Support for Ultra Pipelines
Works in Ultra Task Pipelines.
Limitations and Known Issues
None.
Snap Views
Type | Format | Number of Views | Examples of Upstream and Downstream Snaps | Description |
---|---|---|---|---|
Input | Document |
|
| This Snap allows exactly one input view. |
Output | Document |
|
| Keys from the document will be used as the columns to update and their values will be the updated value in the column. |
Error | Error handling is a generic way to handle errors without losing data or failing the Snap execution. You can handle the errors that the Snap might encounter while running the Pipeline by choosing one of the following options from the When errors occur list under the Views tab:
Learn more about Error handling in Pipelines. |
Snap Settings
Asterisk ( * ): Indicates a mandatory field.
Suggestion icon (): Indicates a list that is dynamically populated based on the configuration.
Expression icon ( ): Indicates the value is an expression (if enabled) or a static value (if disabled). Learn more about Using Expressions in SnapLogic.
Add icon ( ): Indicates that you can add fields in the fieldset.
Remove icon ( ): Indicates that you can remove fields from the fieldset.
Upload icon ( ): Indicates that you can upload files.
Field Name | Field Type | Description |
---|---|---|
Label* | String | Specify a unique name for the Snap. |
Schema name Default value: None | String/Expression/Suggestion | The database schema name. Selecting a schema filters the Table name list to show only those tables within the selected schema. The property is suggestible and will retrieve available database schemas during suggest values. The values can be passed using the pipeline parameters but not the upstream parameter. |
Table name* Default Value: None | String/Expression/Suggestion | The name of the table to execute the update operation on. The values can be passed using the pipeline parameters but not the upstream parameter. |
Update condition Default value: None Without using expressions
Using expressions
Caution Using expressions that join strings together to create SQL queries or conditions has a potential SQL injection risk and hence unsafe. Ensure that you understand all implications and risks involved before using concatenation of strings with '=' Expression enabled. | String/Expression | Condition to execute an update on. In certain scenarios where you want to use specific data from the upstream Snaps, and do not want to change that data in the Update Snap, then you need to place the data in the
In a scenario where the downstream Snap depends on the data processed in an Upstream Database Bulk Load Snap, use the Script Snap to add delay for the data to be available. |
Number of retries Default value: 0 | Integer/Expression | Specifies the maximum number of attempts to be made to receive a response. The request is terminated if the attempts do not result in a response. No macro found named "retries" on page "File Reader" in space "SD". If you're experiencing issues please see our Troubleshooting Guide. |
Retry interval (seconds) Default value: 1 | Integer/Expression | Specifies the time interval between two successive retry requests. A retry happens only when the previous attempt resulted in an exception. |
Snap Execution Default Value: Execute Only | Dropdown list | Select one of the following three modes in which the Snap executes:
|
Downloads
Download and import the Pipeline into SnapLogic.
Configure Snap accounts, as applicable.
Provide Pipeline parameters, as applicable.