Versions Compared

Old Version 7

changes.mady.by.user Kalpana Malladi

Saved on

compared with

New Version Current

changes.mady.by.user Lakshmi Manda

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Note

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

The AlloyDB Update Snap is a Read-type Snap.

Prerequisites

None.

Support for Ultra Pipelines

...

Type

Format

Number of Views

Examples of Upstream and Downstream Snaps

Description

Input 

Document

  • Min: 1

  • Max: 1

  • Mapper

  • Oracle Execute

Schema name, table name, and the update condition to apply on the query.

Output

Document

  • Min: 0

  • Max: 1

  • File Writer

  • Mapper

Keys from the document are used as the columns to update and their values are the updated values 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:

  • Stop Pipeline Execution: Stops the current pipeline Pipeline execution if the Snap encounters an error.

  • Discard Error Data and Continue: Ignores the error, discards that record, and continues with the remaining records.

  • Route Error Data to Error View: Routes the error data to an error view without stopping the Snap execution.

Learn more about Error handling in Pipelines.

...

Info

  • Asterisk ( * ): Indicates a mandatory field.

  • Suggestion icon ((blue star)): Indicates a list that is dynamically populated based on the configuration.

  • Expression icon ((blue star) ): Indicates the value is an expression (if enabled) or a static value (if disabled). Learn more about Using Expressions in SnapLogic.

  • Add icon ( (blue star) ): Indicates that you can add fields in the fieldsetfield set.

  • Remove icon ( (blue star)): Indicates that you can remove fields from the fieldsetfield set.

  • Upload icon ((blue star) ): 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
Example: myschema

String/Expression/Suggestion

The database schema name. Selecting a schema filters the Table name list to show only those tables within in the selected schema. The property is suggestible and will retrieve available database schemas during suggest with suggested values.

Note

The values can be passed using the pipeline Pipeline parameters but not the upstream parameter.

Table name*

Default Value: None
Example: people

String/Expression/Suggestion

The name of the table to execute the update operation on.

Note

The values can be passed using the pipeline parameters but not the upstream parameter.

Update condition

Default value: None
Examples: 

Without using expressions

  • email = 'you@example.com' or email = $email 

  • emp=$emp

Using expressions

  • "EMPNO=$EMPNO and ENAME=$EMPNAME"

  • "emp='" + $emp + "'"

  • "EMPNO=" + $EMPNO + " and ENAME='" + $EMPNAME+ "'"

String/Expression

Condition to execute an update on.

Info

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 original structure of the input document. HenceTherefore, we recommend that you use the format for Update condition and input data format as shown below:

{
"valueToUpdate" : "true",
"original": {
"col1" : "KEY"
}
}

Note

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 a delay for the data to be available.

Note

Caution:

Using expressions that join strings together to create SQL queries or conditions has a potential SQL injection risk and hence therefore is unsafe. Ensure that you understand all implications and risks involved before using a concatenation of strings with '=' Expression enabled. 

Number of retries

Default value: 0
Example: 3

Integer/Expression

Specify 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.

Retry interval (seconds)

Default value: 1
Example:  10

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
Example: Validate & Execute

Dropdown list

Select one of the following three modes in which the Snap executes:

  • Validate & Execute: Performs limited execution of the Snap, and generates a data preview during Pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during Pipeline runtime.

  • Execute only: Performs full execution of the Snap during Pipeline execution without generating preview data.

  • Disabled: Disables the Snap and all Snaps that are downstream from it.

...