tHSQLDbRow Standard properties

Property type

Either Built-in or Repository .

Built-in: No property data stored centrally.

Repository: Select the repository file in which the properties are stored. The fields that follow are completed automatically using the data retrieved.

Running Mode

Select on the list the Server Mode corresponding to your DB setup among the four propositions :

HSQLDb Server, HSQLDb WebServer, HSQLDb In Process Persistent, HSQLDb In Memory.

Use TLS/SSL sockets

Select this check box to enable the secured mode if required.

Host

Database server IP address

Port

Listening port number of DB server.

Database Alias

Name of the database

Username and Password

DB user authentication data.

To enter the password, click the [...] button next to the password field, enter the password in double quotes in the pop-up dialog box, and click OK to save the settings.

DB path

Specify the directory to the database you want to connect to. This field is available only to the HSQLDb In Process Persistent running mode.

Database

Enter the database name that you want to connect to. This field is available only to the HSQLDb In Process Persistent running mode and the HSQLDb In Memory running mode.

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.

Built-in: The schema is created and stored locally for this component only. For more information about a component schema in its Basic settings tab, see Basic settings tab.

Repository: The schema already exists and is stored in the Repository, hence can be reused. For more information about a component schema in its Basic settings tab, see Basic settings tab.

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.

Query type

Either Built-in or Repository .

Built-in: Fill in manually the query statement or build it graphically using SQLBuilder

Repository: Select the relevant query stored in the Repository. The Query field gets accordingly filled in.

Query

Enter your DB query paying particularly attention to properly sequence the fields in order to match the schema definition.

Die on error

This check box is selected by default. Clear the check box to skip the row on error and complete the process for error-free rows. If needed, you can retrieve the rows on error via a Row > Rejects link.

Additional JDBC parameters

Specify additional connection properties for the DB connection you are creating. When the running mode is HSQLDb In Process Persistent , you can set the connection property ifexists=true to allow connection to an existing database only and avoid creating a new database.

Propagate QUERY's recordset

Select this check box to insert the result of the query into a COLUMN of the current flow. Select this column from the use column list.

Commit every

Number of rows to be completed before committing batches of rows together into the DB. This option ensures transaction quality (but not rollback) and above all better performance on executions.

tStat Catcher Statistics

Select this check box to collect log data at the component level.

Global Variables

QUERY: Indicates the query to be processed. This is a Flow variable and it returns a string.

For further information about variables, see Using contexts and variables.

Usage rule

This component offers the flexibility of the DB query and covers all possible SQL queries.

Connections

Outgoing links (from this component to another):

Row: Main; Reject; Iterate

Trigger: Run if; On Component Ok; On Component Error; On Subjob Ok; On Subjob Error.

Incoming links (from one component to this one):

Row: Main; Iterate

Trigger: Run if; On Component Ok; On Component Error; On Subjob Ok; On Subjob Error.

For further information regarding connections, see Using connections in a Job.

Due to license incompatibility, one or more JARs required to use this component are not provided. You can install the missing JARs for this particular component by clicking the Install button on the Component tab view. You can also find out and add all missing JARs easily on the Modules tab in the Integration perspective of Talend Studio. For details, see Installing external modules.