tJDBCTableList – Docs for ESB 5.x

Component family

Databases/JDBC

Function

Iterates on a set of table names through a defined JDBC
connection.

Purpose

Lists the names of a given set of JDBC tables using a select
statement based on a Where clause.

Basic settings

Database type

Select a database from the list, such as Mysql, Oracle,
etc.

Component list

Select the tJDBCConnection
component or a database-specific connection component if the
relevant database is selected from the Database type list.

Advanced settings

Use filter

Select this check box to filter the tables to be iterated
on.

Regular expression for tables
name

Enter the regular expression to identify table names.

Available when Use filter is
selected.

Filter criteria

Select the criteria for filtering table names.

Include: iterates on the table
names identified by the regular expression only.

Exclude: iterates on the table
names other than those identified by the regular expression.

Available when Use filter is
selected.

tStatCatcher Statistics

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

Global Variables

CURRENT_TABLE: the name of the table currently iterated
upon. This is a Flow variable and it returns a string.

NB_TABLE: the number of tables iterated upon so far. This
is a Flow 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

This component is to be used along with JDBC components,
especially with tJDBCConnection.

Log4j

The activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User
Guide.

For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html.