While creating hive tables, Can I point the 'LOCATION' to a place in hdfs where data is present. Do I still need to load data or Will the data be available on hive directly?
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You can specify any location while creating table and the data will be accessible. If table is partitioned, then use
ALTER TABLE ADD PARTITIONorMSCK REPAIR TABLE table_nameor Amazon versionALTER TABLE table_name RECOVER PARTITIONS, this will add any partitions that exist on HDFS but not in metastore to the metastore. See docs here: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-RecoverPartitions(MSCKREPAIRTABLE)If table is not partitioned, you can simply specify the location with data while creating table or change table location using
ALTER TABLE SET LOCATION.