Inserting Data to an HBase Table

Updated on 2025-01-22 GMT+08:00

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Function

This statement is used to insert data in a DLI table to the associated HBase table.

Syntax

Insert the SELECT query result into a table.

      
         INSERT INTO DLI_TABLE
  SELECT field1,field2...
  [FROM DLI_TEST]
  [WHERE where_condition]
  [LIMIT num]
  [GROUP BY field]
  [ORDER BY field] ...;

Insert a data record into a table.

      
         INSERT INTO DLI_TABLE
  VALUES values_row [, values_row ...];

Keywords

For details about the SELECT keywords, see Basic SELECT Statements.

Parameters

**Table 1** Parameters
Parameter	Description
DLI_TABLE	Name of the DLI table for which a datasource connection has been created.
DLI_TEST	indicates the table that contains the data to be queried.
field1,field2..., field	Column values in the DLI_TEST table must match the column values and types in the DLI_TABLE table.
where_condition	Query condition.
num	Limit the query result. The num parameter supports only the INT type.
values_row	Value to be inserted to a table. Use commas (,) to separate columns.

Precautions

A DLI table is available.
In the column family created in Creating a Table and Associating It with HBase, if the column family specified by Cols in OPTIONS does not exist, an error is reported when INSERT INTO is executed.
If the row key, column family, or column you need to insert to the HBase table already exists, the existing data in HBase table will be overwritten.
You are advised not to concurrently insert data into a table. If you concurrently insert data into a table, there is a possibility that conflicts occur, leading to failed data insertion.
INSERT OVERWRITE is not supported.

Example

Query data in the user table and insert the data into the test table.

      
         INSERT INTO test
  SELECT ATTR_EXPR
  FROM user
  WHERE user_name='cyz'
  LIMIT 3
  GROUP BY user_age

Insert data 1 into the test table.
```
INSERT INTO test 
  VALUES (1);
```

Parent topic: Creating a Datasource Connection with an HBase Table

Previous topic: Creating a DLI Table and Associating It with HBase

Next topic: Querying an HBase Table

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