124 lines
2.8 KiB
SQL
124 lines
2.8 KiB
SQL
-- Rename Table
|
|
ALTER TABLE tbl1 RENAME TO tbl2;
|
|
|
|
-- Alter Table Properties
|
|
ALTER TABLE mydb.tb22 SET TBLPROPERTIES ('creator'='hayden');
|
|
|
|
-- Alter Table Comment
|
|
ALTER TABLE mydb.tb22 SET TBLPROPERTIES ('comment' = 'This is a new comment!');
|
|
|
|
-- Add SerDe Properties
|
|
ALTER TABLE employee_tb SET SERDE 'com.dt.test';
|
|
|
|
ALTER TABLE employee_tb
|
|
SET SERDE 'com.dt.test'
|
|
WITH SERDEPROPERTIES ('field.delim' = ',');
|
|
|
|
ALTER TABLE sale_rbl
|
|
PARTITION (
|
|
`pt1`='1'
|
|
)
|
|
SET SERDEPROPERTIES ('field.delim' = ',');
|
|
|
|
-- Remove SerDe Properties
|
|
ALTER TABLE sale_rbl UNSET SERDEPROPERTIES ('field.delim');
|
|
|
|
-- Alter Table Storage Properties
|
|
ALTER TABLE students
|
|
CLUSTERED BY (id, `name`, age)
|
|
SORTED BY (age)
|
|
INTO 2 BUCKETS;
|
|
|
|
-- Alter Table Skewed or Stored as Directories
|
|
ALTER TABLE dt_shop
|
|
SKEWED BY (id, cost)
|
|
ON (('id',1), ('cost', 1000));
|
|
|
|
ALTER TABLE dt_shop
|
|
SKEWED BY (id, cost)
|
|
ON (('id',1), ('cost', 1000))
|
|
STORED AS DIRECTORIES;
|
|
|
|
-- Alter Table Not Skewed
|
|
ALTER TABLE dt_shop NOT SKEWED;
|
|
|
|
-- Alter Table Not Stored as Directories
|
|
ALTER TABLE dt_shop NOT STORED AS DIRECTORIES;
|
|
|
|
-- Alter Table Set Skewed Location
|
|
ALTER TABLE dt_shop SET SKEWED LOCATION ('id'='location1', "cost"="loaction2" );
|
|
|
|
-- Alter Table Constraints
|
|
ALTER TABLE tbl1
|
|
ADD CONSTRAINT const1
|
|
PRIMARY KEY (id)
|
|
DISABLE NOVALIDATE;
|
|
|
|
ALTER TABLE tbl2
|
|
ADD CONSTRAINT const2
|
|
FOREIGN KEY (id, `name`)
|
|
REFERENCES refer_tb(rid, rname)
|
|
DISABLE NOVALIDATE RELY;
|
|
|
|
ALTER TABLE tbl3
|
|
ADD CONSTRAINT const3
|
|
UNIQUE (`name`, `age`)
|
|
DISABLE NOVALIDATE;
|
|
|
|
ALTER TABLE tbl4
|
|
CHANGE COLUMN `col1` `col2` STRING CONSTRAINT const4
|
|
NOT NULL ENABLE;
|
|
|
|
ALTER TABLE tbl5
|
|
CHANGE COLUMN `col3` `col4` INT CONSTRAINT const5
|
|
DEFAULT 998 ENABLE;
|
|
|
|
ALTER TABLE tbl6
|
|
CHANGE COLUMN col5 col6 MAP<STRING, STRING> CONSTRAINT const6
|
|
CHECK (1) ENABLE;
|
|
|
|
ALTER TABLE tbl7 DROP CONSTRAINT remove_const;
|
|
|
|
-- Alter Partition
|
|
ALTER TABLE add_par_tbl
|
|
ADD IF NOT EXISTS
|
|
PARTITION (`pt1` = 1) LOCATION '/pat/loc'
|
|
PARTITION (`pt2` = 2, `pt3`=3) LOCATION '/pat/loc'
|
|
|
|
-- Rename Partition
|
|
ALTER TABLE ren_par_tbl
|
|
PARTITION (`pt1`=1)
|
|
RENAME TO PARTITION (`pt2`=2) ;
|
|
|
|
-- Exchange Partition
|
|
ALTER TABLE ex_part_tbl2
|
|
EXCHANGE PARTITION (`pt1`=1)
|
|
WITH TABLE ex_part_tbl1;
|
|
|
|
-- Recover Partitions
|
|
MSCK TABLE rec_tbl;
|
|
|
|
MSCK REPAIR TABLE rec_tbl SYNC PARTITIONS;
|
|
|
|
-- Drop Partitions
|
|
ALTER TABLE dr_tbl1 DROP PARTITION (`pt1`=1);
|
|
|
|
ALTER TABLE dr_tbl2 DROP IF EXISTS PARTITION (`pt2`=2) PURGE;
|
|
|
|
-- ALTER TABLE dr_tbl2 DROP IF EXISTS PARTITION (`pt2`=2) IGNORE PROTECTION PURGE;
|
|
|
|
-- Archive Partition
|
|
ALTER TABLE arch_pt_tbl1 ARCHIVE PARTITION (`pt1`=1);
|
|
|
|
ALTER TABLE arch_pt_tbl2 UNARCHIVE PARTITION (`pt2`=2) ;
|
|
|
|
-- Add/Replace Columns
|
|
ALTER TABLE rp_col_tbl1 ADD COLUMNS (`col1` INT);
|
|
|
|
ALTER TABLE rp_col_tbl2 REPLACE COLUMNS (`col2` INT);
|
|
|
|
ALTER TABLE rp_col_tbl2
|
|
PARTITION (`pt1`=1)
|
|
ADD COLUMNS (`col3` INT COMMENT 'a new col')
|
|
CASCADE;
|