tOracleSP

tOracleSP Properties

Component family	Databases/Oracle
Function	tOracleSP calls the database stored procedure.
Purpose	tOracleSP offers a convenient way to centralize multiple or complex queries in a database and call them easily.
Basic settings	Use an existing connection	Select this check box and in the Component List click the relevant connection component to reuse the connection details you already defined. 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: In the parent level, register the database connection to be shared in the Basic settings view of the connection component which creates that very database connection. In the child level, use a dedicated connection component to read that registered database connection. For an example about how to share a database connection across Job levels, see Talend Studio User Guide.
	Connection type	Drop-down list of available drivers: Oracle OCI: Select this connection type to use Oracle Call Interface with a set of C-language software APIs that provide an interface to the Oracle database. Oracle Service Name: Select this connection type to use the TNS alias that you give when you connect to the remote database. Oracle SID: Select this connection type to uniquely identify a particular database on a system. Oracle Custom: Select this connection type to access a clustered database.
	Property type	Either Built-in or Repository. Since version 5.6, both the Built-In mode and the Repository mode are available in any of the Talend solutions.
		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.
	DB Version	Select the Oracle version in use.
	Host	Database server IP address.
	Port	Listening port number of DB server.
	Database	Name of the database.
	Schema	Name of the schema.
	Username and Password	DB user authentication data. To enter the password, click the […] button next to the password field, and then in the pop-up dialog box enter the password between double quotes and click OK to save the settings.
	Schema and Edit Schema	A schema is a row description, it defines the number of fields to be processed and passed on to the next component. The schema is either Built-in or stored remotely in the Repository. Since version 5.6, both the Built-In mode and the Repository mode are available in any of the Talend solutions. 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.
		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 Job designs. Related topic: see Talend Studio User Guide.
	SP Name	Type in the exact name of the Stored Procedure (or Function)
	Is Function / Return result in	Select this check box, if the stored procedure is a function and one value only is to be returned. Select on the list the schema column, the value to be returned is based on.
	Parameters	Click the Plus button and select the various Schema Columns that will be required by the procedures. Note that the SP schema can hold more columns than there are parameters used in the procedure.
		Select the Type of parameter: IN: Input parameter. OUT: Output parameter/return value. IN OUT: Input parameter is to be returned as value, likely after modification through the procedure (function). RECORDSET: Input parameters is to be returned as a set of values, rather than single value. Note Check Scenario 1: Inserting data in mother/daughter tables if you want to analyze a set of records from a database table or DB query and return single records.
		The Custom Type is used when a Schema Column you want to use is user-defined. Two Custom Type columns are available in the Parameters table. In the first Custom Type column: – Select the check box in the Custom Type column when the corresponding Schema Column you want to use is of user-defined type. – If all listed Schema Columns in the Parameters table are of custom type, you can select the check box before Custom Type once for them all.
		Select a database type from the DB Type list to map the source database type to the target database type: – Auto-Mapping: Map the source database type to the target database type automatically.(default) – CLOB: Character large object. – BLOB: Binary large object. – DECIMAL: Decimal numeric object. – NUMERIC: Character 0 to 9.
		In the second Custom Type column, you can precise what the custom type is. The type may be: – STRUCT: used for one element. – ARRAY: used for a collection of elements.
		In the Custom name column, specify the name of the custom type that you have given to this type. Warning When an OUT parameter uses the custom type, make sure that its corresponding Schema Column has chosen the Object type in the schema table.
Advanced settings	Additional JDBC parameters	Specify additional connection properties for the DB connection you are creating. This option is not available if you have selected the Use an existing connection check box in the Basic settings.
	NLS Language	In the list, select the language used for the data that are not used in Unicode.
	NLS Territory	Select the conventions used for date and time formats. The default value is that of the operating system.
	tStatCatcher Statistics	Select this check box to gather the job processing metadata at a Job level as well as at each component level.
Dynamic settings	Click the [+] button to add a row in the table and fill the Code field with a context variable to choose your database connection dynamically from multiple connections planned in your Job. This feature is useful when you need to access database tables having the same data structure but in different databases, especially when you are working in an environment where you cannot change your Job settings, for example, when your Job has to be deployed and executed independent of Talend Studio. The Dynamic settings table is available only when the Use an existing connection check box is selected in the Basic settings view. Once a dynamic parameter is defined, the Component List box in the Basic settings view becomes unusable. For more information on Dynamic settings and context variables, see Talend Studio User Guide.
Usage	This component is used as intermediary component. It can be used as start component but only input parameters are thus allowed.
Limitation	The Stored Procedures syntax should match the Database syntax. When the parameters set in this component are of Custom Type, the tJava family components should be placed before the component in order for users to define values for the custom-type parameters, or after the component so as to read and output the Out-type custom parameters.

Scenario: Checking number format using a stored procedure

The following job aims at connecting to an Oracle Database containing Social Security
Numbers and their holders’ name, calling a stored procedure that checks the SSN format
of against a standard ###-##-#### format. Then the verification output results, 1 for
valid format and 0 for wrong format get displayed onto the execution console.

Drag and drop the following components from the Palette: tOracleConnection,
tOracleInput, tOracleSP and tLogRow.
Link the tOracleConnection to the tOracleInput using a Then
Run connection as no data is handled here.
And connect the other components using a Row
Main link as rows are to be passed on as parameter to the SP
component and to the console.
In the tOracleConnection, define the details
of connection to the relevant Database. You will then be able to reuse this
information in all other DB-related components.
Then select the tOracleInput and define its
properties.

Select the Use an existing connection check
box and select the tOracleConnection component
in the list in order to reuse the connection details that you already
set.
Select Repository as Property type as the Oracle schema is defined in the DB Oracle
connection entry of the Repository. If you haven’t recorded the Oracle DB
details in the Repository, then fill in the
Schema name manually.
Then select Repository as Schema, and retrieve the relevant schema
corresponding to your Oracle DB table.

In this example, the SSN table has a four-column schema that includes
ID, NAME,
CITY and SSNUMBER.
In the Query field, type in the following
Select query or select it in the list, if you stored it in the
Repository.

select ID, NAME, CITY, SSNUMBER from SSN
Then select the tOracleSP and define its
Basic settings.

Like for the tOracleInput component, select
Repository in the Property type field and select the Use an
existing connection check box, then select the relevant entries
in the respective list.
The schema used for the tOracleSP slightly
differs from the input schema. Indeed, an extra column
(SSN_Valid) is added to the Input schema. This column
will hold the format validity status (1 or
0) produced by the procedure.

In the SP Name field, type in the exact name
of the stored procedure (or function) as called in the Database. In this use
case, the stored procedure name is is_ssn.

The basic function used in this particular example is as follows:

CREATE OR REPLACE FUNCTION is_ssn(string_in VARCHAR2)
RETURN PLS_INTEGER<span></span>
IS<span></span>
-- validating ###-##-#### format<span></span>
BEGIN<span></span>
  IF TRANSLATE(string_in, '0123456789A', 'AAAAAAAAAAB') =<span></span>
     'AAA-AA-AAAA' THEN<span></span>
    RETURN 1;<span></span>
  END IF;<span></span>
  RETURN 0;<span></span>
END is_ssn;<span></span>
/

CREATE OR REPLACE FUNCTION is_ssn(string_in VARCHAR2)

RETURN PLS_INTEGER

IS

-- validating ###-##-#### format

BEGIN

IF TRANSLATE(string_in, '0123456789A', 'AAAAAAAAAAB') =

'AAA-AA-AAAA' THEN

RETURN 1;

END IF;

RETURN 0;

END is_ssn;

As a return value is expected in this use case, the procedure acts as a
function, so select the Is function check box.
The only return value expected is based on the ssn_valid
column, hence select the relevant list entry.
In the Parameters area, define the input and
output parameters used in the procedure. In this use case, only the
SSNumber column from the schema is used in the
procedure.
Click the plus sign to add a line to the table and select the relevant column
(SSNumber) and type (IN).
Then select the tLogRow component and click
Sync Column to make sure the schema is passed on from the preceding tOracleSP component.

Select the Print values in cells of a table
check box to facilitate the output reading.
Then save your job and press F6 to run it.

On the console, you can read the output results. All input schema columns are
displayed even though they are not used as parameters in the stored procedure.

The final column shows the expected return value, whether the SS Number checked is
valid or not.

Note

Check Scenario 1: Inserting data in mother/daughter tables if you want to analyze a set of records from a
database table or DB query and return single records.

Related scenarios

For related scenarios, see:

Document get from Talend https://help.talend.com

Thank you for watching.

Docs 5.x

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tOracleSP – Docs for ESB 5.x

tOracleSP

tOracleSP Properties

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Scenario: Checking number format using a stored procedure

Note

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