DML

LOAD DATA [LOCAL] INPATH 'filepath' [OVERWRITE] INTO TABLE tablename [PARTITION (partcol1=val1, partcol2=val2 ...)]

INSERT OVERWRITE TABLE tablename1 [PARTITION (partcol1=val1, partcol2=val2 ...) [IF NOT EXISTS]] select_statement1 FROM from_statement;
INSERT INTO TABLE tablename1 [PARTITION (partcol1=val1, partcol2=val2 ...)] select_statement1 FROM from_statement;

//带元数据信息 meta
EXPORT TABLE tablename [PARTITION (part_column="value"[, ...])]
TO 'export_target_path' [ FOR replication('eventid') ]

IMPORT [[EXTERNAL] TABLE new_or_original_tablename [PARTITION (part_column="value"[, ...])]]
FROM 'source_path'
[LOCATION 'import_target_path']

export table employee partition (emp_country="in", emp_state="ka") to 'hdfs_exports_location/employee';
import from 'hdfs_exports_location/employee';

export table employee to 'hdfs_exports_location/employee';
import table employee partition (emp_country="us", emp_state="tn") from 'hdfs_exports_location/employee';