三个主流数据库（Oracle、MySQL和SQL Server）的“单表造数-编程知识

oracle

1.创建表

CREATE TABLE "YZH2_ORACLE" ("VARCHAR2_COLUMN" VARCHAR2(20) NOT NULL ENABLE,"NUMBER_COLUMN" NUMBER,"DATE_COLUMN" DATE,"CLOB_COLUMN" CLOB,"BLOB_COLUMN" BLOB,"BINARY_DOUBLE_COLUMN" BINARY_DOUBLE,"BINARY_FLOAT_COLUMN" BINARY_FLOAT,"CHAR_COLUMN" CHAR(1),"CHAR_VARYING_COLUMN" VARCHAR2(20),"DEC_COLUMN" NUMBER(*, 0),"DECIMAL_COLUMN" NUMBER(*, 0),"DOUBLE_PRECISION_COLUMN" FLOAT(126),"CHARACTER_COLUMN" CHAR(1),"CHARACTER_VARYING_COLUMN" VARCHAR2(20),"FLOAT_COLUMN" FLOAT(126),"INT_COLUMN" NUMBER(*, 0),"INTEGER_COLUMN" NUMBER(*, 0),"NATIONAL_CHAR_COLUMN" NCHAR(1),"NATIONAL_CHAR_VARYING_COLUMN" NVARCHAR2(20),"NATIONAL_CHARACTER_COLUMN" NCHAR(1),"NATIONAL_CHARACTER_VARY_COLUMN" NVARCHAR2(20),"NCHAR_COLUMN" NCHAR(1),"NCHAR_VARYING_COLUMN" NVARCHAR2(20),"NCLOB_COLUMN" NCLOB,"NUMERIC_COLUMN" NUMBER(*, 0),"NVARCHAR2_COLUMN" NVARCHAR2(20),"RAW_COLUMN" RAW(20),"REAL_COLUMN" FLOAT(63),"SMALLINT_COLUMN" NUMBER(*, 0),"TIMESTAMP_COLUMN" TIMESTAMP (6),"VARCHAR_COLUMN" VARCHAR2(20))

预设游标10000（必要时）

alter system set open_cursors = 10000;

模拟新增10万条数据

DECLARE I number := 0; 
BEGIN FOR I IN 0..100000 LOOP INSERT INTO YZH2_ORACLE (VARCHAR2_COLUMN, NUMBER_COLUMN, BINARY_DOUBLE_COLUMN,BINARY_FLOAT_COLUMN, CHAR_VARYING_COLUMN,DEC_COLUMN, DECIMAL_COLUMN, DOUBLE_PRECISION_COLUMN,CHARACTER_VARYING_COLUMN, FLOAT_COLUMN,INT_COLUMN, INTEGER_COLUMN, NATIONAL_CHAR_VARYING_COLUMN,NATIONAL_CHARACTER_VARY_COLUMN,NCHAR_VARYING_COLUMN, NUMERIC_COLUMN,NVARCHAR2_COLUMN, REAL_COLUMN, SMALLINT_COLUMN,VARCHAR_COLUMN)VALUES (I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I,I, I, I, I); END LOOP; COMMIT; 
END;

1.1 oracle一条sql数据生成100万条数据

SELECTrownum AS id,to_char(sysdate + rownum / 24 / 3600, 'yyyy-mm-dd hh24:mi:ss') AS inc_datetime,trunc(dbms_random.value(0, 100)) AS random_id,dbms_random.string('x',20) AS random_string
FROMdual
CONNECT BYLEVEL <= 1000000;  #可传参数

2.SQL SERVER

创建测试表


CREATE TABLE dbo.yzh2_ms_checker (BIGINT_COLUMN bigint NULL DEFAULT (NULL),BINARY_COLUMN binary(64) NULL DEFAULT (NULL),BIT_COLUMN bit NULL DEFAULT (NULL),CHAR_COLUMN char(64) NULL DEFAULT (NULL),CHAR_MAX_COLUMN char(128) NULL DEFAULT (NULL),DATE_COLUMN date NULL DEFAULT (NULL),DATETIME_COLUMN datetime NULL DEFAULT (NULL),DECIMAL_COLUMN decimal(18,0) NULL DEFAULT (NULL),FLOAT_COLUMN real NULL DEFAULT (NULL),INT_COLUMN int NULL DEFAULT (NULL),MONEY_COLUMN money NULL DEFAULT (NULL),NCHAR_COLUMN nchar(64) NULL DEFAULT (NULL),NCHAR_MAX_COLUMN nchar(128) NULL DEFAULT (NULL),NTEXT_COLUMN ntext NULL DEFAULT (NULL),NUMERIC_COLUMN numeric(18,0) NULL DEFAULT (NULL),NVARCHAR_COLUMN nvarchar(64) NULL DEFAULT (NULL),NVARCHAR_MAX_COLUMN nvarchar(128) NULL DEFAULT (NULL),REAL_COLUMN real NULL DEFAULT (NULL),SMALLINT_COLUMN smallint NULL DEFAULT (NULL),SMALLMONEY_COLUMN smallmoney NULL DEFAULT (NULL),TEXT_COLUMN text NULL DEFAULT (NULL),TINYINT_COLUMN tinyint NULL DEFAULT (NULL),VARBINARY_COLUMN varbinary(64) NULL DEFAULT (NULL),VARCHAR_COLUMN varchar(64) NULL DEFAULT (NULL),VARCHAR_MAX_COLUMN varchar(128) NULL DEFAULT (NULL),XML_COLUMN xml NULL DEFAULT (NULL)
);
GO


DECLARE @i INT
SET@i = 1 
WHILE @i <=30000 BEGININSERT INTO dbo.yzh2_ms_checker (BIGINT_COLUMN, BINARY_COLUMN, BIT_COLUMN,CHAR_COLUMN, CHAR_MAX_COLUMN, DATE_COLUMN,DATETIME_COLUMN, DECIMAL_COLUMN,FLOAT_COLUMN, INT_COLUMN, MONEY_COLUMN,NCHAR_COLUMN, NCHAR_MAX_COLUMN,NTEXT_COLUMN, NUMERIC_COLUMN, NVARCHAR_COLUMN,NVARCHAR_MAX_COLUMN, REAL_COLUMN,SMALLINT_COLUMN, SMALLMONEY_COLUMN,TEXT_COLUMN, TINYINT_COLUMN, VARBINARY_COLUMN,VARCHAR_COLUMN, VARCHAR_MAX_COLUMN,XML_COLUMN)
VALUES(@i,1,@i,@i,@i,GETDATE(),GETDATE(),@i,@i,@i,@i,@i,@i,STR(@i),@i,STR(@i),STR(@i),@i,@i,@i,STR(@i),NULL,1,@i,@i,STR(@i))SET @i = @i + 1 
END;

3.MySQL

创建测试表

CREATE TABLE `yzh2_sync` (`bigint_column` bigint(10) NOT NULL  AUTO_INCREMENT COMMENT '1',`bit_column` bigint(10) NOT NULL COMMENT '2',`blob_column` blob NOT NULL COMMENT '3',`char_column` char(64) NOT NULL COMMENT '4',`date_column` date NOT NULL COMMENT '5',`datetime_column` datetime NOT NULL COMMENT '6',`decimal_column` decimal(18,9) NOT NULL COMMENT '7',`double_column` double NOT NULL COMMENT '8',`float_column` float NOT NULL COMMENT '10',`int_column` int(11) NOT NULL COMMENT '11',`longblob_column` longblob NOT NULL COMMENT '12',`longtext_column` longtext NOT NULL COMMENT '13',`mediumblob_column` mediumblob NOT NULL COMMENT '14',`mediumint_column` mediumint(9) NOT NULL COMMENT '15',`mediumtext_column` mediumtext NOT NULL COMMENT '16',`smallint_column` smallint(6) NOT NULL COMMENT '18',`text_column` text NOT NULL COMMENT '19',`time_column` time NOT NULL COMMENT '20',`timestamp_column` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '21',`tinyint_column`  int(11)  NOT NULL COMMENT '22',`tinytext_column` tinytext NOT NULL COMMENT '23',`varchar_column` varchar(32) NOT NULL COMMENT '24',PRIMARY KEY (`bigint_column`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

模拟新增3万条数据

DROP PROCEDURE if EXISTS test_insert;
DELIMITER //
CREATE PROCEDURE test_insert()BEGINDECLARE y BIGINT DEFAULT 0;WHILE y<30000DOINSERT INTO yzh2_sync (bit_column, blob_column, char_column,date_column, datetime_column, decimal_column,double_column, float_column, int_column,longblob_column, longtext_column,mediumblob_column, mediumint_column,mediumtext_column, smallint_column,text_column, time_column, timestamp_column,tinyint_column, tinytext_column,varchar_column)VALUES(y, y, y, now(), now(), y, y, y, y, y, y, y, y, y, y, y,now(), now(), y, y, y);SET y=y+1;END WHILE ;commit;
END //