Join (DB)

Performs a table join on the input data sets by allowing users to define the input data set alias, the output columns, and the join condition.

Join operator

Information at a Glance

Category Transform
Data source type DB
Sends output to other operators Yes
Data processing tool n/a
Note: The Join (DB) operator is for database data only. For Hadoop data, use the Join (HD) operator.

Input

Accepts two or more data sets.

Note: Both tables must be located in the same database. Join does not work on tables located in different databases. See the Team Studio Operator Compatibility Matrix for any data source exceptions for the Join operator.

Configuration

Parameter Description
Notes Any notes or helpful information about this operator's parameter settings. When you enter content in the Notes field, a yellow asterisk is displayed on the operator.
Create Sequence ID Click Yes to create an ID column on the output data set of the Join operator.
Join Conditions Click Set Table Join Parameters to display the Join Properties dialog box.

For information about the options, see Join Properties - Database Dialog Box. For information about creating the Join condition, see Creating a Join condition for a database join..

Output Type
  • TABLE outputs a database table. Specifying TABLE enables Storage Parameters.
  • VIEW outputs a database view.
Output Schema The schema for the output table or view.
Output Table The table path and name where the results are output. By default, this is a unique table name based on your user ID, workflow ID, and operator.
Storage Parameters Advanced database settings for the operator output. Available only for TABLE output.

See Storage Parameters Dialog Box for more information.

Drop If Exists Specifies whether to overwrite an existing table.
  • Yes - If a table with the name exists, it is dropped before storing the results.
  • No - If a table with the name exists, the results window shows an error message.

Output

Visual Output
The resulting joined data rows of the output table or view are displayed in the Results window (up to 200 rows of the data):

Data Output

A data set of the output table or view of the joined data set.

Related reference