tCombinedSQLFilter Standard properties - 7.3

Schema and Edit schema

A schema is a row description. It defines the number of fields (columns) to be processed and passed on to the next component. When you create a Spark Job, avoid the reserved word line when naming the fields.

Click Edit schema to make changes to the schema. If the current schema is of the Repository type, three options are available:

• View schema: choose this option to view the schema only.

• Change to built-in property: choose this option to change the schema to Built-in for local changes.

• Update repository connection: choose this option to change the schema stored in the repository and decide whether to propagate the changes to all the Jobs upon completion. If you just want to propagate the changes to the current Job, you can select No upon completion and choose this schema metadata again in the Repository Content window.

Click Sync columns to retrieve the schema from the previous component connected in the Job.

Built-in: You create and store the schema locally for this component only. Related topic: see Talend Studio User Guide.

Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Jobs. Related topic: see Talend Studio User Guide.

Logical operator between conditions

Select the logical operator between the filter conditions defined in the Conditions panel.

Two operators are available: Or, And.

Conditions

Select the type of WHERE clause along with the values and the columns to use for row filtering.

Input Column: Select the column to filter in the list.

Operator: Select the type of the WHERE clause: =, < >, >, <, >=, <=, LIKE, IN, NOT IN, and EXIST IN.

Values: Type in the values to be used in the WHERE clause.

Negate: Select this check box to enable the condition that is opposite to the current setting.

Use custom SQL

Customize a WHERE clause by selecting this check box and editing in the SQL Condition field.

tStatCatcher Statistics

Select this check box to gather the Job processing metadata at a Job level as well as at each component level.

Global Variables

NB_LINE: the number of rows read by an input component or transferred to an output component. This is a Flow variable and it returns an integer.

QUERY: the query statement being processed. This is a Flow variable and it returns a string.

ERROR_MESSAGE: the error message generated by the component when an error occurs. This is an After variable and it returns a string. This variable functions only if the Die on error check box is cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl + Space to access the variable list and choose the variable to use from it.

For further information about variables, see Talend Studio User Guide.

Usage rule

This component is an intermediary component. The use of the corresponding connection and commit components is recommended when using this component to allow a unique connection to be open and then closed during the Job execution.