Input 

Document

• Min: 0

• Max: 1

• Mapper

• JSON Generator

The schema name from where the Snap must list the tables.

Output

Document

• Min: 1

• Max: 1

• JSON Parser

• File Writer

This Snap outputs a list of tables in a database. Documents with a "name" field containing the fully-qualified name of the table and a "type" field. To use the table name in another Snap, like a Select or Insert, you can pass it through for each Snap to another Pipeline with the Select or Insert.

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 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.

Field

Field Type

Description

Label*

Default Value: AlloyDB Table List
Example: List Tables

String

Specify a unique name for the Snap. Modify this to be more specific, especially if you have more than one Snap of the same type in your Pipeline.

Schema name

Default Value: N/A
Example: test

String/Expression/Suggestion

The database schema name. In case it is not defined, then the suggestion for the table name will retrieve all tables names of all schemas. The property is suggestible and will retrieve available database schemas during suggest values.

Compute table graph

Default Value: Not selected
Example: Selected

Checkbox

Computes the dependents among tables and returns each table with a list of tables it has foreign key references to. The ordering of outputted tables is from least dependent to most-dependent. 

Snap Execution

Default Value: Validate & Execute
Example: Execute Only

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.