Help Center/ MapReduce Service/ Component Operation Guide (LTS) (Ankara Region)/ Using Loader/ Operator Help/ Output Operators/ Table Output
Updated on 2024-11-29 GMT+08:00
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Table Output

Overview

The Table Output operator exports output fields to specified columns in a relational database table.

Input and Output

  • Input: fields to be exported
  • Output: relational database table

Parameters

Table 1 Operator parameters description

Parameter

Description

Node Type

Mandatory

Default Value

Output delimiter

Delimiter.

NOTE:

This configuration applies only to the MySQL dedicated connector. If the data column content contains the default delimiter, you need to set a user-defined delimiter. Otherwise, data disorder may occur.

string

No

,

Line delimiter

Line delimiter, which can be any string specified by users based on the actual situation. Any character string is supported. The OS line delimiter is used by default.

NOTE:

This configuration applies only to the MySQL dedicated connector. If the data column content contains the default delimiter, you need to set a user-defined delimiter. Otherwise, data disorder may occur.

string

No

\n

Output fields

Information about relational database output fields:

  • field name: Names of output fields.
  • table column name: Names of database table columns.
  • type: Field type. The value must be consistent with the field type configured in the database.
  • length: Field value length. If the actual field value is excessively long, the value is cut based on the configured length. When type is set to CHAR, spaces are added to the field value for supplement if the actual field value length is less than the configured length. When type is set to VARCHAR, no space is added to the field value for supplement if the actual field value length is less than the configured length.

map

Yes

None

Data Processing Rule

The field values are exported to the table.

Example

Use the data export from HBase to sqlserver2014 as an example.

In sqlserver2014, run the following statement to create an empty data test_1 for storing HBase data. Run the following statement:

create table test_1 (id int, name text, value text);

Use the HBase Input operator to generated three fields A, B, and C.

Use the Table Output operator to export A, B, and C to the test_1 table.

The command output is as follows:

Parent topic: Output Operators