July 30, 2023

tSybaseBulkExec – Docs for ESB 7.x

tSybaseBulkExec

Gains in performance during Insert operations to a Sybase database.

The tSybaseOutputBulk and tSybaseBulkExec components are generally used together as
parts of a two step process. In the first step, an output file is generated. In the
second step, this file is used in the INSERT operation used to feed a database. These
two steps are fused together in the tSybaseOutputBulkExec component, detailed in a separate section. The
advantage of using two separate components is that the data can be transformed before it
is loaded in the database.

tSybaseBulkExec Standard properties

These properties are used to configure tSybaseBulkExec running in the Standard Job framework.

The Standard
tSybaseBulkExec component belongs to the Databases family.

The component in this framework is available in all Talend
products
.

Note: This component is a specific version of a dynamic database
connector. The properties related to database settings vary depending on your database
type selection. For more information about dynamic database connectors, see Dynamic database components.

Basic settings

Database

Select a type of database from the list and click
Apply.

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.

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:

  1. 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.

  2. 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
.

DB Version

Select the version of the Sybase database to be used from the
drop-down list.

Server

Database server IP address

Available when you select Bulk
Update
from the Action on
data
list in the Advanced
settings
view of tSybaseBulkExec.

Port

Listening port number of DB server.

Available when you select Bulk
Update
from the Action on
data
list in the Advanced
settings
view of tSybaseBulkExec.

Database

Database name

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.

Sybase Schema

Name of the database schema you want to use.

Bcp Utility

Name of the utility to be used to copy data over to the Sybase
server.

Server

IP address of the database server for the Bcp utility
connection.

Batch size

Number of lines in each processed batch.

Table

Name of the table to be written. Note that only one table can be
written at a time and that the table must exist for the insert
operation to succeed.

Action on table

On the table defined, you can perform one of the following
operations:

None: No operation is carried
out.

Drop and create table: The table is
removed and created again.

Create table: The table does not
exist and gets created.

Create table if not exists: The
table is created if it does not exist.

Drop table if exists and create:
The table is removed if it already exists and created again.

Clear table: The table content is
deleted.

Truncate table: The table content
is deleted. You do not have the possibility to rollback the
operation.

File Name

Name of the file to be loaded.

Warning:

This file should be located on the same machine as the
database server.

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: You create and store the schema locally for this component
only.

 

Repository: You have already created the schema and stored it in the
Repository. You can reuse it in various projects and Job designs.

When the schema to be reused has default values that are
integers or functions, ensure that these default values are not enclosed within
quotation marks. If they are, you must remove the quotation marks manually.

You can find more details about how to
verify default values in retrieved schema in Talend Help Center (https://help.talend.com).

 

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.

Advanced settings

Use an interface file

Select this check box to specify an interface file in the field
Interface file.

Additional JDBC parameters

Specify additional connection properties in the existing DB
connection, to allow specific character set support. E.G.:
CHARSET=KANJISJIS_OS to get support of Japanese characters.

Action on data

On the data of the table defined, you can perform:

Bulk Insert: Add multiple entries
to the table. If duplicates are found, Job stops.

Bulk Update: Make simultaneous
changes to multiple entries.

Field Terminator

Character, string or regular expression to separate fields.

Warning:

With the row/field separators compliant
with the Sybase syntax, this component allows for the use of
Sybase-orientated characters, such as x09.

Row Terminator

String (ex: ”
” in Unix) to separate lines.

Head row

Number of head lines to be ignored in the beginning of a
file.

Encoding

Select the encoding from the list, or enter the encoding between double quotes
if it does not exist in the list. This field is compulsory for database data
handling.

Output

Select the type of output for the standard output of the Sybase
database:

to console,

to global variable.

tStataCatcher statistics

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

Global Variables

Global Variables

NB_LINE_DATA: the number of rows read. This is an After
variable and it returns an integer.

NB_LINE_BAD: the number of rows rejected. This is an
After variable and it returns an integer.

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

Usage rule

This component is mainly used when no particular transformation is
required on the data to be loaded onto the database.

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 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
settings
and context variables, see Talend Studio
User Guide.

Limitation

The database server/client must be installed on the same machine
where the Studio is installed or where the Job using tSybaseBulkExec is deployed, so that the
component functions properly.

As opposed to the Oracle dedicated bulk component, no action on
data is possible using this Sybase dedicated component.

This component requires installation of its related jar files.


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