MySQL数据库管理之如何创建分区表

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创建分区表mysql> CREATE TABLE `LINEITEM` (L_SHIPDATE DATE NULL,L_ORDERKEY INT NOT NULL,L_DISCOUNT DECIMAL(10,2) NOT NULL,L_EXTENDEDPRICE DECIMAL(10,2) NOT NULL,L_SUPPKEY INT NOT NULL,L_QUANTITY INT NOT NULL,L_RETURNFLAG CHAR(1) BINARY NULL,L_PARTKEY INT NOT NULL,L_LINESTATUS CHAR(1) BINARY NULL,L_TAX DECIMAL(10,2) NOT NULL,L_COMMITDATE DATE NULL,L_RECEIPTDATE DATE NULL,L_SHIPMODE CHAR(10) BINARY NULL,L_LINENUMBER INT NOT NULL,L_SHIPINSTRUCT CHAR(25) BINARY NULL,L_COMMENT VARCHAR(44) BINARY NULL,PRIMARY KEY (`L_ORDERKEY`, `L_LINENUMBER`,`L_SHIPDATE`)) PARTITION BY RANGE COLUMNS (L_SHIPDATE) (    PARTITION p0 VALUES LESS THAN ('1993-01-01'),    PARTITION p1 VALUES LESS THAN ('1994-01-01'),    PARTITION p2 VALUES LESS THAN ('1995-01-01'),    PARTITION p3 VALUES LESS THAN ('1996-01-01'),    PARTITION p4 VALUES LESS THAN ('1997-01-01'),    PARTITION p5 VALUES LESS THAN ('1998-01-01'),    PARTITION p6 VALUES LESS THAN ('1999-01-01'),    PARTITION p7 VALUES LESS THAN (MAXVALUE))删除mysql> ALTER TABLE lineitem DROP PARTITION p7;增加mysql> ALTER TABLE lineitem ADD PARTITION (PARTITION p7 VALUES LESS THAN ('2000-01-01'));拆分mysql> ALTER TABLE lineitem    REORGANIZE PARTITION p0 INTO (        PARTITION p199206 VALUES LESS THAN ('1992-07-01'),        PARTITION p199212 VALUES LESS THAN ('1993-01-01'));合并mysql> ALTER TABLE lineitem REORGANIZE PARTITION p199206,p199212 INTO (    PARTITION p0 VALUES LESS THAN ('1993-01-01'));交换分区mysql> CREATE TABLE `temp1992` (  `L_SHIPDATE` date NOT NULL DEFAULT '0000-00-00',  `L_ORDERKEY` int(11) NOT NULL,  `L_DISCOUNT` decimal(10,2) NOT NULL,  `L_EXTENDEDPRICE` decimal(10,2) NOT NULL,  `L_SUPPKEY` int(11) NOT NULL,  `L_QUANTITY` int(11) NOT NULL,  `L_RETURNFLAG` char(1) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,  `L_PARTKEY` int(11) NOT NULL,  `L_LINESTATUS` char(1) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,  `L_TAX` decimal(10,2) NOT NULL,  `L_COMMITDATE` date DEFAULT NULL,  `L_RECEIPTDATE` date DEFAULT NULL,  `L_SHIPMODE` char(10) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,  `L_LINENUMBER` int(11) NOT NULL,  `L_SHIPINSTRUCT` char(25) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,  `L_COMMENT` varchar(44) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,  PRIMARY KEY (`L_ORDERKEY`,`L_LINENUMBER`,`L_SHIPDATE`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mysql> ALTER TABLE lineitem EXCHANGE PARTITION p0 WITH TABLE temp1992;Query OK, 0 rows affected (0.24 sec)

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