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how to add sequence number in hive. Hive INSERT OVERWRITE TABLE increment_table1 SELECT incr AS inc id c1 c2 FROM t1. Create table CREATE TABLE Employee ID BIGINT NAME STRING AGE INT SALARY BIGINT COMMENT This is Employee table stored as sequencefile ROW FORMAT DELIMITED FIELDS TERMINATED BY STORED AS SEQUENCEFILE.
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CREATE SEQUENCE creates a new sequence number generator. This is a poor mans answer to the standard analytic function row_number. Load data into the table from Sequencefiles.
Create table CREATE TABLE Employee ID BIGINT NAME STRING AGE INT SALARY BIGINT COMMENT This is Employee table stored as sequencefile ROW FORMAT DELIMITED FIELDS TERMINATED BY STORED AS SEQUENCEFILE.
So we have successfully added one extra column with automatic increment value with row number by creating Custom UDF in hive. This involves creating and initializing a new special single-row table with the name name. Hive SELECT FROM increment_table1. This is a poor mans answer to the standard analytic function row_number.
