Inserting Data into Hive Table

Hive insert query like SQL

Some of the answers here are out of date as of Hive 0.14

https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DML#LanguageManualDML-InsertingvaluesintotablesfromSQL

It is now possible to insert using syntax such as:

CREATE TABLE students (name VARCHAR(64), age INT, gpa DECIMAL(3, 2));

INSERT INTO TABLE students
  VALUES ('fred flintstone', 35, 1.28), ('barney rubble', 32, 2.32);

Insert data into hive table

You can insert new data into table by two ways.

1. Load the data of a file into table using load command.

   LOAD DATA [LOCAL] INPATH 'filepath' [OVERWRITE] INTO TABLE tablename.
   

2. You can insert new data into table by using select query.

   INSERT INTO table tablename1 select columnlist FROM secondtable;
   

Convert value while inserting into HIVE table

Based on your insert, you just need to work on the role part of your select:

INSERT into TABLE bucketed_user PARTITION (salary)
select
    id
  , age
  , gender
  , if(role='consultant', 'BigData consultant', role) as role
  , salary
FROM
  stage_table
where
  salary > 10000
;

---

Related Topics