Insert data into a table

To insert data into a table you use a familiar ANSI SQL statement. A simple example shows you have to accomplish this basic task.

To insert data into an ACID table, use the Optimized Row Columnar (ORC) storage format. To insert data into a non-ACID table, you can use other Hive-supported formats. You can specify partitioning as shown in the following syntax:

INSERT INTO TABLE tablename [PARTITION (partcol1=val1, partcol2=val2 ...)] VALUES values_row [, values_row...]


values_row is (value [, value]) .

A value can be NULL or any SQL literal.

  1. Create an ACID table to contain student information.
    CREATE TABLE students (name VARCHAR(64), age INT, gpa DECIMAL(3,2));
  2. Insert name, age, and gpa values for a few students into the table.
    INSERT INTO TABLE students VALUES ('fred flintstone', 35, 1.28), ('barney rubble', 32, 2.32);
  3. Create a table called pageviews and assign null values to columns you do not want to assign a value.
    CREATE TABLE pageviews (userid VARCHAR(64), link STRING, from STRING) PARTITIONED BY (datestamp STRING) CLUSTERED BY (userid) INTO 256 BUCKETS;
    INSERT INTO TABLE pageviews PARTITION (datestamp = '2014-09-23') VALUES ('jsmith', '', ''), ('jdoe', '', null); 
    INSERT INTO TABLE pageviews PARTITION (datestamp) VALUES ('tjohnson', '', '', '2014-09-23'), ('tlee', '', null, '2014-09-21');            
    The ACID data resides in the Hive warehouse.