Builds the SQL SELECT statement using the table schema(s) provided by one or more
The three ELT Oracle components are closely related, in
terms of their operating conditions. These components should be used to handle Oracle
database table schemas to generate SQL statements, including clauses, which are to be
executed in the database output table defined.
tELTOracleMap Standard properties
These properties are used to configure tELTOracleMap running in the Standard Job framework.
tELTOracleMap component belongs to the ELT family.
The component in this framework is available in all Talend
Use an existing connection
Select this check box and in the Component List click the relevant connection component to
Note: When a Job contains the parent Job and the child Job, if you
need to share an existing connection between the two levels, for example, to share the
connection created by the parent Job with the child Job, you have to:
For an example about how to share a database connection
ELT Oracle Map Editor
The ELT Map editor allows you to define the output schema and make a
Auto: By default, the links between
Bezier curve: Links between the schema
Line: Links between the schema and the
This option slightly optimizes performance.
Either Built-in or Repository.
Built-in: No property data stored
Repository: Select the Repository
Drop-down list of the available drivers.
Select the Oracle version you are using.
Database server IP address
Listening port number of DB server.
Name of the database
Username and Password
DB user authentication data.
To enter the password, click the […] button next to the
Automatically set mapping parameter.
Additional JDBC Parameters
Specify additional connection properties for the DB connection you are
Use Hint Options
Select this check box to activate the hint configuration area to help
– HINT: specify the hint you need,
– SQL STMT: select the SQL statement
Select this check box to gather the Job processing metadata at a Job
ERROR_MESSAGE: the error message generated by the
A Flow variable functions during the execution of a component while an After variable
To fill up a field or expression with a variable, press Ctrl +
For further information about variables, see
tELTOracleMap is used along with a
Note that the ELT components do not handle actual data flow but
Click the [+] button to add a row in the table
The Dynamic settings table is
For examples on using dynamic parameters, see Reading data from databases through context-based dynamic connections and Reading data from different MySQL databases using dynamically loaded connection parameters. For more information on Dynamic
Updating Oracle database entries
This scenario is based on the data aggregation scenario,
Aggregating table columns and filtering. As the data update action is
available in Oracle database, this scenario describes a Job that updates particular data
in the Agg_Result table.
As described in Aggregating table columns and filtering, configure a Job for data aggregation using the corresponding ELT components for
Oracle database – tELTOracleInput,
tELTOracleMap, and tELTOracleOutput.
Execute the Job to save the aggregation result in a database table named
When defining filters in the ELT Map editor, note that strings are
case sensitive in Oracle database.
Launch the ELT Map editor and add a new output table named
Add a filter row to the update_data table to set up a
relationship between input and output tables:
Drop the MAKE column from the cars table to the
Drop the NAME_RESELLER column from the resellers table
to the update_data table.
Add a model enclosed in single quotation marks, 'A8' in
this use case, to the MAKE column from the cars table,
preceded by a double pipe.
Add Sold by enclosed in single quotation marks in front
of the NAME_RESELLER column from the resellers table, with a double pipe in
Check the Generated SQL select query tab
to be executed.
Click OK to validate the changes in the
Deactivate the tELTOracleOutput
component labeled Agg_Result by right-clicking it and
selecting Deactivate Agg_Result from the
Drop a new tELTOracleOutput component
from the Palette to the design workspace,
and label it Update_Data to better identify its
Connect the tELTOracleMap component to
the new tELTOracleOutput component using
the link corresponding to the new output table defined in the ELT Mapper,
update_data in this use case.
Double-click the new tELTOracleOutput
component to display its Basic settings
From the Action on data list, select
Check the schema, and click Sync columns
to retrieve the schema structure from the preceding component if
In the WHERE clauses area, add a clause
agg_result.MAKE = 'Audi'to update
data relating to the make of Audi in the database table
Fill the Default Table Name field with
the name of the output link, update_data in this use
Select the Use different table name
check box, and fill the Table name field
with the name of the database table to be updated,
agg_result in this use case. Leave the other
parameters as they are.
Running the Job
- Save your Job.
Click Run to execute the Job.
The relevant data in the database table is updated as
Mapping data using a subquery, a related scenario using subquery