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CLUSTERED KEY 在ADB中，CLUSTERED KEY：聚集索引，定义表中的排序列，聚集索引中键值的逻辑顺序决定了表中相应行的物理顺序。 GaussDB (DWS)不支持该属性修改表定义信息，DSC迁移时会将该关键字删除。 输入示例 1 2 3 4 5 6 DROP TABLE IF EXISTS unsupport_parse_test; CREATE TABLE `unsupport_parse_test` ( `username` int, clustered key clustered_key(shopid ASC, datetype ASC) ); DROP TABLE IF EXISTS unsupport_parse_test; 输出示例 1 2 3 4 5 DROP TABLE IF EXISTS "public"."unsupport_parse_test"; CREATE TABLE "public"."unsupport_parse_test" ( "username" INTEGER ) WITH (ORIENTATION = ROW, COMPRESSION = NO) NOCOMPRESS DISTRIBUTE BY HASH ("username"); DROP TABLE IF EXISTS "public"."unsupport_parse_test"; 父主题： 表（可选参数、操作）

AUTONOMOUS 输入：AUTONOMOUS 1 2 3 CREATE OR REPLACE EDITIONABLE PACKAGE BODY "Pack1"."DEMO_PROC" is PROCEDURE log(proc_name IN VARCHAR2, info IN VARCHAR2) IS PRAGMA AUTONOMOUS_TRANSACTION; 输出 1 2 CREATE OR REPLACE PROCEDURE DEMO_PROC.log ( proc_name IN VARCHAR2 ,info IN VARCHAR2 ) IS /*PRAGMA AUTONOMOUS_TRANSACTION;*/

ALTER SESSION Oracle中的ALTER SESSION语句用于设置或修改数据库连接的参数和行为。该语句将持续有效，除非数据库连接断开。DSC可迁移如下形式的ALTER SESSION语句： 含有ADVISE、ENABLE、DISABLE、CLOSE和FORCE的ALTER SESSION语句将被迁移为注释脚本。 含有SET CLAUSE参数（例如：NLS_DATE_FORMAT和NLS_DATE_LANGUAGE等）的ALTER SESSION语句将被逐字复制。 该工具不支持迁移命令子句含有变量的ALTER SESSION语句。 例如：EXECUTE IMMEDIATE ' alter session ' || command_val || 'parallel ' || type_value. 示例中，command_val是变量，不受DSC支持。不支持的语句将被逐字复制到已迁移的脚本中。 输入：ALTER SESSION 1 2 3 4 5 ALTER SESSION ENABLE PARALLEL DDL; ALTER SESSION ADVISE COMMIT; ALTER SESSION CLOSE DATABASE LINK local; ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY MM DD HH24:MI:SS'; ALTER SESSION SET current_schema = 'isfc'; 输出 1 2 3 4 5 /*ALTER SESSION ENABLE PARALLEL DDL;*/ /*ALTER SESSION ADVISE COMMIT;*/ /*ALTER SESSION CLOSE DATABASE LINK local;*/ ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY MM DD HH24:MI:SS'; ALTER SESSION SET current_schema = 'isfc'; 输入：ALTER SESSION 1 2 3 4 5 6 7 8 9 10 11 12 13 CREATE OR REPLACE PROCEDURE PUBLIC .TEST_CALL is command_val varchar2 ( 1000 ) ; type_value number ; BEGIN command_val := 'enable parallel ddl' ; dbms_output.put_line ( mike ) ; -- execute immediate 'ALTER SESSION DISABLE GUARD' ; execute immediate 'ALTER SESSION ADVISE ROLLBACK' ; EXECUTE IMMEDIATE ' alter session ' || command_val || 'parallel ' || type_value ; END TEST_CALL; / 输出 1 2 3 4 5 6 7 8 9 10 11 12 CREATE OR REPLACE PROCEDURE PUBLIC.TEST_CALL is command_val varchar2 ( 1000 ) ; type_value number ; BEGIN command_val := 'enable parallel ddl' ; dbms_output.put_line ( mike ) ; /* execute immediate 'ALTER SESSION DISABLE GUARD' ; */ execute immediate '/*ALTER SESSION ADVISE ROLLBACK*/' ; EXECUTE IMMEDIATE 'alter session ' || command_val || 'parallel ' || type_value ; END ; /

TRUNCATE TABLE Oracle中的TRUNCATE TABLE语句用于从表中删除所有记录，与DELETE语句功能相同，但不含WHERE子句。执行截断操作后，表将成为空表。DSC仅可迁移含有静态表名称的TRUNCATE TABLE语句，不支持迁移含有动态表名称的TRUNCATE TABLE语句。 该工具不支持迁移含有动态表名称的TRUNCATE TABLE语句。 例如：l_table :='truncate table ' || itable_name 在此示例中，itable_name表示动态表名称，不受DSC支持。不支持的语句将被原样复制到已迁移的脚本中。 输入：TRUNCATE TABLE，使用Execute Immediate 1 2 3 4 5 6 CREATE OR REPLACE PROCEDURE schema1.proc1 AS BEGIN EXECUTE IMMEDIATE 'TRUNCATE TABLE QUERY_TABLE'; End proc1; / 输出 1 2 3 4 5 CREATE OR REPLACE PROCEDURE schema1.proc1 AS BEGIN EXECUTE IMMEDIATE 'TRUNCATE TABLE schema1.QUERY_TABLE' ; end ; / 输入：在过程中使用TRUNCATE TABLE DSC不会为动态PL/SQL语句添加模式名称。 1 2 3 4 5 6 7 8 CREATE OR REPLACE PROCEDURE schemName.sp_dd_table ( itable_name VARCHAR2 ) IS l_table VARCHAR2 ( 255 ) ; BEGIN l_table :='truncate table ' || itable_name ; ---- dbms_utility.exec_ddl_statement(l_table); dbms_output.put_line ( itable_name || ' ' || 'Truncated' ) ; END sp_dd_table ; / 输出 1 2 3 4 5 6 7 8 9 CREATE OR REPLACE PROCEDURE schemName.sp_dd_table ( itable_name VARCHAR2 ) IS l_table VARCHAR2 ( 255 ) ; BEGIN l_table :='truncate table ' || itable_name ; /* dbms_utility.exec_ddl_statement(l_table); */ dbms_output.put_line ( itable_name || ' ' || 'Truncated' ) ; end ; /

EDITIONABLE GaussDB(DWS)不支持EDITIONABLE关键字，因此需要在目标数据库中删除。 输入：EDITIONABLE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CREATE OR REPLACE EDITIONABLE PACKAGE "PACK1"."PACKAGE_SEND_MESSAGE" AS TYPE filelist IS REF CURSOR; PROCEDURE get_message_info (in_userid IN VARCHAR2, in_branchid IN VARCHAR2, in_appverid IN VARCHAR2, in_app_list_flag IN VARCHAR2, in_filetype IN VARCHAR2, in_filestate IN VARCHAR2, o_retcode OUT VARCHAR2, o_errormsg OUT VARCHAR2, o_seq OUT VARCHAR2, o_totalnum OUT NUMBER, o_filelist OUT filelist); 输出 1 2 3 4 /*~~PACKAGE_SEND_MESSAGE~~*/ CREATE SCHEMA PACKAGE_SEND_MESSAGE ;

LONG 数据类型LONG迁移为TEXT。 输入：LONG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CREATE OR REPLACE FUNCTION fn_proj_det ( i_proj_cd INT ) RETURN LONG IS v_proj_det LONG; BEGIN SELECT proj_det INTO v_proj_det FROM project WHERE proj_cd = i_proj_cd; RETURN v_proj_det; END; / 输出 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CREATE OR REPLACE FUNCTION fn_proj_det ( i_proj_cd INT ) RETURN TEXT IS v_proj_det TEXT; BEGIN SELECT proj_det INTO v_proj_det FROM project WHERE proj_cd = i_proj_cd; RETURN v_proj_det; END; /

END 不支持END指定标签。因此，迁移期间将删除标签名称。 输入：END，使用过程名 1 2 3 4 5 CREATE OR REPLACE PROCEDURE sp_ins_emp … … ... END sp_ins_emp; 输出 1 2 3 4 5 CREATE OR REPLACE PROCEDURE sp_ins_emp … … ... END; 输入：END，使用函数名 1 2 3 4 5 6 CREATE FUNCTION fn_get_bal … … ... END get_bal; / 输出 1 2 3 4 5 6 CREATE FUNCTION fn_get_bal … … ... END; /

替换变量 替换变量是Oracle SQL * Plus工具的一个特性。 当在一个语句中使用一个替换变量时，SQL * Plus会请求一个输入值并重写该语句以将其包含在内。 重写的语句被传递到Oracle数据库。 当输入的Oracle脚本包含任何替换变量时，DSC将显示以下消息。消息记录在控制台和日志文件中。 ************************************************************************** USER ATTENTION!!! Variable: &bbid should be substituted in the file : "/home/testmigration/V100R002C60/MigrationTool/Input/proc_frss_jczbsc.SQL" Variable: &wdbs should be substituted in the file : "/home/testmigration/V100R002C60/MigrationTool/Input/proc_frss_jczbsc.SQL" Variable: &batch_no should be substituted in the file : "/home/testmigration/V100R002C60/MigrationTool/Input/proc_frss_jczbsc.SQL" **************************************************************************

CONNECTION GaussDB(DWS)不支持该属性修改表定义信息，DSC迁移时会将该属性删除。 CONNECTION关键字在MySQL中用作引用外部数据源。工具暂不支持该特性的完整迁移。基于当前的临时方案，工具仅仅移除该关键字。 输入示例 1 2 3 4 5 6 7 8 9 10 CREATE TABLE `public`.`runoob_alter_test`( `dataType1` int NOT NULL AUTO_INCREMENT, `dataType2` DOUBLE(20,8), `dataType3` TEXT NOT NULL, `dataType4` YEAR NOT NULL DEFAULT '2018', PRIMARY KEY(`dataType1`) ); ALTER TABLE runoob_alter_test CONNECTION 'hello'; ALTER TABLE runoob_alter_test CONNECTION='hello'; 输出示例 1 2 3 4 5 6 7 8 9 10 11 CREATE TABLE "public"."runoob_alter_test" ( "datatype1" SERIAL NOT NULL, "datatype2" DOUBLE PRECISION, "datatype3" TEXT NOT NULL, "datatype4" SMALLINT NOT NULL DEFAULT '2018', PRIMARY KEY ("datatype1") ) WITH ( ORIENTATION = ROW, COMPRESSION = NO ) NOCOMPRESS DISTRIBUTE BY HASH ("datatype1"); 父主题： 表（可选参数、操作）

类型对照 表1 集合类型对照表 MySQL集合类型 MySQL INPUT GaussDB(DWS) OUTPUT ENUM ENUM VARCHAR SET SET VARCHAR 对于ENUM的类型转换，将转换为VARCHAR类型，精度大小为枚举值中最长字段长度的4倍，并使用CHECK()函数确保输入枚举值的正确性 对于SET的类型转换，将转换为VARCHAR类型，精度大小为各枚举值字段长度与分隔符数量和的4倍。 输入示例ENUM 1 2 3 4 CREATE TABLE IF NOT EXISTS `runoob_dataType_test`( id int(2) PRIMARY KEY, `dataType_17` ENUM('dws-1', 'dws-2', 'dws-3') ); 输出示例 1 2 3 4 5 6 7 8 CREATE TABLE IF NOT EXISTS "public"."runoob_datatype_test" ( "id" INTEGER(2) PRIMARY KEY, "datatype_17" VARCHAR(20) CHECK (dataType_17 IN('dws-1','dws-2','dws-3','', null)) ) WITH ( ORIENTATION = ROW, COMPRESSION = NO ) NOCOMPRESS DISTRIBUTE BY HASH ("id"); 输入示例SET 1 2 3 CREATE TABLE IF NOT EXISTS `runoob_tbl_test`( `dataType_18` SET('dws-1', 'dws-2', 'dws-3') ); 输出示例 1 2 3 4 5 6 7 CREATE TABLE IF NOT EXISTS "public"."runoob_tbl_test" ( "datatype_18" VARCHAR(68) ) WITH ( ORIENTATION = ROW, COMPRESSION = NO ) NOCOMPRESS DISTRIBUTE BY HASH ("datatype_18");

LOCK GaussDB(DWS)不支持MySQL中的"ALTER TABLE tbName LOCK"语句，DSC工具迁移时会将其删除。 输入示例 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CREATE TABLE IF NOT EXISTS `runoob_alter_test`( `dataType1` int NOT NULL AUTO_INCREMENT, `dataType2` FLOAT(10), `dataType4` TEXT NOT NULL, `dataType5` YEAR NOT NULL DEFAULT '2018', `dataType6` DATETIME NOT NULL, `dataType7` CHAR NOT NULL DEFAULT '', `dataType8` VARCHAR(50), `dataType9` VARCHAR(50) NOT NULL DEFAULT '', `dataType10` TIME NOT NULL DEFAULT '10:20:59', PRIMARY KEY(`dataType1`) )ENGINE=InnoDB DEFAULT CHARSET=utf8; ## A. ALTER TABLE runoob_alter_test LOCK DEFAULT; ## B. ALTER TABLE runoob_alter_test LOCK=DEFAULT; ## C. ALTER TABLE runoob_alter_test LOCK EXCLUSIVE; ## D. ALTER TABLE runoob_alter_test LOCK=EXCLUSIVE; 输出示例 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CREATE TABLE IF NOT EXISTS "public"."runoob_alter_test" ( "datatype1" SERIAL NOT NULL, "datatype2" REAL, "datatype4" TEXT NOT NULL, "datatype5" SMALLINT NOT NULL DEFAULT '2018', "datatype6" TIMESTAMP WITHOUT TIME ZONE NOT NULL, "datatype7" CHAR(4) NOT NULL DEFAULT '', "datatype8" VARCHAR(200), "datatype9" VARCHAR(200) NOT NULL DEFAULT '', "datatype10" TIME WITHOUT TIME ZONE NOT NULL DEFAULT '10:20:59', PRIMARY KEY ("datatype1") ) WITH ( ORIENTATION = ROW, COMPRESSION = NO ) NOCOMPRESS DISTRIBUTE BY HASH ("datatype1"); -- A. -- B. -- C. -- D. 父主题： 表（可选参数、操作）

声明Hexadecimal Binary Literal值 输入： CREATE MULTISET TABLE bvalues (IDVal INTEGER, CodeVal BYTE(2)); INSERT INTO bvalues VALUES (112193, '7879'XB) ; SELECT IDVal, CodeVal FROM bvalues WHERE CodeVal = '7879'XB ; 输出：

声明Hexadecimal Character Literal值 输入： SELECT (COALESCE(TRIM(BOTH FROM VTX_D_RPT_0017_WMSE12_01_01.ID),'')) ||'7E'xc||(COALESCE(TRIM(BOTH FROM VTX_D_RPT_0017_WMSE12_01_01.Code),'')) ||'7E'xc||(COALESCE(TRIM(BOTH FROM VTX_D_RPT_0017_WMSE12_01_01.Description),'')) ||'7E'xc||(COALESCE(TRIM(BOTH FROM VTX_D_RPT_0017_WMSE12_01_01.Name),'')) ||'7E'xc||(COALESCE(TRIM(BOTH FROM VTX_D_RPT_0017_WMSE12_01_01.Host_Product_Id),'')) FROM DP_VTXEDW.VTX_D_RPT_0017_WMSE12_01_01 VTX_D_RPT_0017_WMSE12_01_01 WHERE 1=1 ; 输出：

SUBTYPE SUBTYPE语句中，PL/SQL允许您定义自己的子类型或预定义数据类型的别名，有时称为抽象数据类型。 输入 CREATE OR REPLACE PACKAGE "SAD"."BAS_SUBTYPE_PKG" IS SUBTYPE CURRENCY IS BAS_PRICE_LIST_T.CURRENCY%TYPE; END bas_subtype_pkg; / CREATE OR REPLACE PACKAGE BODY "SAD"."BAS_SUBTYPE_PKG" IS BEGIN NULL; END bas_subtype_pkg; / --******************************************************************** CREATE OR REPLACE PACKAGE BODY SAD.bas_lookup_misc_pkg IS FUNCTION get_currency(pi_price_type IN NUMBER) RETURN VARCHAR2 IS v_currency bas_subtype_pkg.currency; BEGIN g_func_name := 'get_currency'; FOR rec_currency IN (SELECT currency FROM sad_price_type_v WHERE price_type_code = pi_price_type) LOOP v_currency := rec_currency.currency; END LOOP; RETURN v_currency; END get_currency; END SAD.bas_lookup_misc_pkg; /

TYPE命名约定 用户定义的类型允许定义数据类型，以模拟应用程序中数据的结构和行为。 输入 CREATE TYPE t_line AS ( product_line VARCHAR2 ( 30 ) ,product_amount NUMBER ) ; ; 输出 CREATE TYPE sad_dml_product_pkg.t_line AS ( product_line VARCHAR2 ( 30 ) ,product_amount NUMBER ) ; 输入 CREATE TYPE t_line AS ( product_line VARCHAR2 ( 30 ) ,product_amount NUMBER ) ;

EXTEND GaussDB(DWS)支持EXTEND关键字。 输入： EXTEND FUNCTION FUNC_EXTEND ( in_str IN VARCHAR2) RETURN ARRYTYPE AS v_count2 INTEGER; v_strlist arrytype; v_node VARCHAR2 (2000); BEGIN v_count2 := 0; v_strlist := arrytype (); FOR v_i IN 1 .. LENGTH (in_str) LOOP IF v_node IS NULL THEN v_node := ''; END IF; IF (v_count2 = 0) OR (v_count2 IS NULL) THEN EXIT; ELSE v_strlist.EXTEND (); v_strlist (v_i) := v_node; v_node := ''; END IF; END LOOP; RETURN v_strlist; END; / 输出 FUNCTION FUNC_EXTEND ( in_str IN VARCHAR2 ) RETURN ARRYTYPE AS v_count2 INTEGER ; v_strlist arrytype ; v_node VARCHAR2 ( 2000 ) ; BEGIN v_count2 := 0 ; v_strlist := arrytype ( ) ; FOR v_i IN 1.. LENGTH( in_str ) LOOP IF v_node IS NULL THEN v_node := '' ; END IF ; IF ( v_count2 = 0 ) OR( v_count2 IS NULL ) THEN EXIT ; ELSE v_strlist.EXTEND ( 1 ) ; v_strlist ( v_i ) := v_node ; v_node := '' ; END IF ; END LOOP ; RETURN v_strlist ; END ; /

LOW_PRIORITY MySQL INSERT插入语句使用LOW_PRIORITY修饰符时，则执行该INSERT延迟。 输入示例 1 2 3 4 5 6 # LOW_PRIORITY 低优先级 INSERT LOW_PRIORITY INTO exmp_tb2 VALUES( DEFAULT, '128.23', 'nice', '2018-10-11'); INSERT LOW_PRIORITY INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', '2018-12-14' ); INSERT LOW_PRIORITY INTO exmp_tb2 VALUES(DEFAULT, DEFAULT, 'nice', DEFAULT); INSERT LOW_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price) VALUES(DEFAULT, DEFAULT); INSERT LOW_PRIORITY INTO exmp_tb2 (tb2_id, tb2_price, tb2_note) VALUES(DEFAULT, DEFAULT, DEFAULT); 输出示例 1 2 3 4 5 6 -- LOW_PRIORITY 低优先级 INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,'128.23','nice','2018-10-11'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice','2018-12-14'); INSERT INTO "public"."exmp_tb2" VALUES (DEFAULT,DEFAULT,'nice',DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price") VALUES (DEFAULT,DEFAULT); INSERT INTO "public"."exmp_tb2" ("tb2_id","tb2_price","tb2_note") VALUES (DEFAULT,DEFAULT,DEFAULT); 父主题： INSERT

Teradata 如果含有FORMAT参数的case语句未用半角括号“()”括起来，该语句不会处理。 例如： 1 case when column1='0' then column1='value' end (FORMAT 'YYYYMMDD')as alias1 在该示例中，case when column1='0' then column1='value' end未用半角括号括起，因此不会处理该语句。

ROUNDROBIN表 GaussDB(DWS)支持建立roundrobin表，根据实际需要设置表1中的参数•table.type进行配置。设置table.type=ROUND-ROBIN。 输入示例 1 2 3 4 5 CREATE TABLE charge_snapshot ( id bigint NOT NULL, profit_model integer, ladder_rebate_rule text ); 输出示例 1 2 3 4 5 CREATE TABLE "public"."charge_snapshot" ( "id" BIGINT NOT NULL, "profit_model" INTEGER, "ladder_rebate_rule" TEXT ) WITH (ORIENTATION = ROW, COMPRESSION = NO) NOCOMPRESS DISTRIBUTE BY ROUNDROBIN; 父主题： 表（可选参数、操作）

TYPE 将“MDSYS.MBRCOOR DLI ST”替换为“CLOB”。 Oracle语法 迁移后语法 1 2 3 4 5 create table product_part ( partid VARCHAR2(24), mbrcoords MDSYS.MBRCOORDLIST ); 1 2 3 4 5 CREATE TABLE product_part ( partid VARCHAR2(24), mbrcoords CLOB );

列 xmax、xmin、left、right、maxvalue为Gauss关键字，这些关键字应全字母大写并加英文双引号（""）。 Oracle语法 迁移后语法 1 2 3 4 5 6 7 8 create table product ( xmax VARCHAR2(20), xmin VARCHAR2(50), left VARCHAR2(50), right VARCHAR2(50), maxvalue VARCHAR2(50) ); 1 2 3 4 5 6 7 8 CREATE TABLE product1 ( "XMAX" VARCHAR2(20), "XMIN" VARCHAR2(50), "LEFT" VARCHAR2(50), "RIGHT" VARCHAR2(50), "MAXVALUE" VARCHAR2(50) );

SEGMENT CREATION GaussDB不支持SEGMENT CREATION { IMMEDIATE | DEFERRED }，因此该语句在迁移后被注释掉，需要设置commentStorageParameter=true。 输入：TABLE，使用SEGMENT CREATION 1 2 3 4 5 6 7 8 9 10 11 12 13 CREATE TABLE T1 ( MESSAGE_CODE VARCHAR2(50), MAIL_TITLE VARCHAR2(1000), MAIL_BODY VARCHAR2(1000), MAIL_ADDRESS VARCHAR2(1000), MAIL_ADDRESS_CC VARCHAR2(1000) ) SEGMENT CREATION DEFERRED PCTFREE 10 PCTUSED 0 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOG GING STORAGE( INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE Test ;

间隔分区 对于间隔分区，应该注释分区。 Oracle语法 迁移后语法 1 2 3 4 5 6 7 8 9 CREATE TABLE product ( product_id VARCHAR2(20), product_name VARCHAR2(50), manufacture_month DATE ) partition by range (manufacture_month) interval (NUMTODSINTERVAL (1, 'MONTH')) ( partition T_PARTITION_2018_11_LESS values less than (TO_DATE(' 2018-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'))); 1 2 3 4 5 6 7 8 9 CREATE TABLE product ( product_id VARCHAR2(20), product_name VARCHAR2(50), manufacture_month DATE ) /*partition by range (manufacture_month) interval (NUMTODSINTERVAL (1, 'MONTH')) ( partition T_PARTITION_2018_11_LESS values less than (TO_DATE(' 2018-11-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS')))*/;

分区（二） 在非分区表中，删除表“ALTER TABLE TRUNCATE PARTITION”中的数据。 Oracle语法 迁移后语法 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 CREATE TABLE product_list ( product_id VARCHAR2(20), Product_Name VARCHAR2(50), Year_Manufacture vARCHAR2(10) ) partition by list (Year_Manufacture) ( partition PART_2015 VALUES (2011,2012,2013,2014,2015) pctfree 10 initrans 1 , partition PART_2016 VALUES (2016) pctfree 10 initrans 1 , partition PART_2017 VALUES (2017) pctfree 10 initrans 1 , partition PART_2018 VALUES (2018) pctfree 10 initrans 1 , partition PART_2019 VALUES (2019) pctfree 10 initrans 1 , partition PART_2020 VALUES (2020) pctfree 10 initrans 1 , PARTITION PART_unknown VALUES (DEFAULT) ); CREATE OR REPLACE PROCEDURE List_test IS V_ID VARCHAR2(10); BEGIN EXECUTE IMMEDIATE 'ALTER TABLE product_list TRUNCATE PARTITION PART_2020; NULL; END; / CREATE OR REPLACE PROCEDURE List_test IS V_ID VARCHAR2(10); BEGIN EXECUTE IMMEDIATE 'ALTER TABLE product_list TRUNCATE PARTITION PART_' || V_ID; NULL; END; / 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 CREATE TABLE product_list ( product_id VARCHAR2(20), Product_Name VARCHAR2(50), Year_Manufacture vARCHAR2(10) ) /*partition by list (Year_Manufacture) ( partition PART_2015 VALUES (2011,2012,2013,2014,2015) pctfree 10 initrans 1 , partition PART_2016 VALUES (2016) pctfree 10 initrans 1 , partition PART_2017 VALUES (2017) pctfree 10 initrans 1 , partition PART_2018 VALUES (2018) pctfree 10 initrans 1 , partition PART_2019 VALUES (2019) pctfree 10 initrans 1 , partition PART_2020 VALUES (2020) pctfree 10 initrans 1 , PARTITION PART_unknown VALUES (DEFAULT) )*/; CREATE OR REPLACE PROCEDURE List_test IS V_ID VARCHAR2(10); BEGIN EXECUTE IMMEDIATE 'ALTER TABLE product_list TRUNCATE PARTITION PART_' || V_ID; NULL; END; / CREATE OR REPLACE PROCEDURE List_test IS V_ID VARCHAR2(10); BEGIN /* EXECUTE IMMEDIATE 'ALTER TABLE product_list TRUNCATE PARTITION PART_' || V_ID; */ IF 'PART_' || V_ID = 'PART_2015' THEN DELETE FROM product_list WHERE Year_Manufacture IN (2011,2012,2013,2014,2015); ELSIF 'PART_' || V_ID = 'PART_2016' THEN DELETE FROM product_list WHERE Year_Manufacture IN (2016); ELSIF 'PART_' || V_ID = 'PART_2017' THEN DELETE FROM product_list WHERE Year_Manufacture IN (2017); ELSIF 'PART_' || V_ID = 'PART_2018' THEN DELETE FROM product_list WHERE Year_Manufacture IN (2018); ELSIF 'PART_' || V_ID = 'PART_2019' THEN DELETE FROM product_list WHERE Year_Manufacture IN (2019); ELSIF 'PART_' || V_ID = 'PART_2020' THEN DELETE FROM product_list WHERE Year_Manufacture IN (2020); ELSE DELETE FROM product_list WHERE Year_Manufacture NOT IN (2011,2012,2013,2014,2015,2016,2017,2018,2019,2020); END IF; NULL; END; /

分区（注释约束） oracle配置参数中“#分区表唯一或主键约束”为“comment_unique”。 Oracle语法 迁移后语法 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 CREATE TABLE TBL_ORACLE ( ID Number, Name VARCHAR2(100 BYTE), ADDRESS VARCHAR2(200 BYTE) ) TABLESPACE space1 PCTUSED 40 PCTFREE 0 INITRANS 1 MAXTRANS 255 NOLOGGING PARTITION BY RANGE (ID) ( PARTITION PART_2010 VALUES LESS THAN (10) NOLOGGING, PARTITION PART_2011 VALUES LESS THAN (20) NOLOGGING , PARTITION PART_2012 VALUES LESS THAN (MAXVALUE) NOLOGGING ) ENABLE ROW MOVEMENT; ALTER TABLE TBL_ORACLE ADD CONSTRAINT SAMPLE_PK PRIMARY KEY (ID); 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 CREATE UNLOGGED TABLE TBL_ORACLE ( ID NUMBER ,Name VARCHAR2 (100) ,ADDRESS VARCHAR2 (200) /*,CONSTRAINT SAMPLE_PK PRIMARY KEY (ID)*/ ) TABLESPACE space1 /*PCTUSED 40*/ PCTFREE 0 INITRANS 1 MAXTRANS 255 PARTITION BY RANGE (ID) ( PARTITION PART_2010 VALUES LESS THAN (10) ,PARTITION PART_2011 VALUES LESS THAN (20) ,PARTITION PART_2012 VALUES LESS THAN (MAXVALUE) ) ENABLE ROW MOVEMENT ;

分区（一） 在非分区表中，为表“ALTER TABLE TRUNCATE PARTITION”添加注释。 Oracle语法 迁移后语法 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 CREATE TABLE product_range ( product_id VARCHAR2(20), Product_Name VARCHAR2(50), Year_Manufacture DATE ) partition by range (Year_Manufacture) ( partition Year_Manufacture values less than (TO_DATE(' 2007-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS')) pctfree 10 initrans 1 ); CREATE TABLE product_list ( product_id VARCHAR2(20), Product_Name VARCHAR2(50), Year_Manufacture vARCHAR2(10) ) partition by list (Year_Manufacture) ( partition P_2020 VALUES (2020) pctfree 10 initrans 1 ); CREATE OR REPLACE PROCEDURE Range_test IS V_ID VARCHAR2(10); BEGIN EXECUTE IMMEDIATE 'ALTER TABLE product TRUNCATE PARTITION PART'||V_ID; NULL; END; / CREATE OR REPLACE PROCEDURE List_test IS V_ID VARCHAR2(10); BEGIN EXECUTE IMMEDIATE 'ALTER TABLE product TRUNCATE PARTITION PART'||V_ID; NULL; END; / 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 CREATE TABLE product_range ( product_id VARCHAR2(20), Product_Name VARCHAR2(50), Year_Manufacture DATE ) partition by range (Year_Manufacture) ( partition Year_Manufacture values less than (TO_DATE(' 2007-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS')) pctfree 10 initrans 1 ); CREATE TABLE product_list ( product_id VARCHAR2(20), Product_Name VARCHAR2(50), Year_Manufacture vARCHAR2(10) ) /*partition by list (Year_Manufacture) ( partition P_2020 VALUES (2020) pctfree 10 initrans 1 )*/; CREATE OR REPLACE PROCEDURE Range_test IS V_ID VARCHAR2(10); BEGIN EXECUTE IMMEDIATE 'ALTER TABLE product TRUNCATE PARTITION PART'||V_ID; NULL; END; / CREATE OR REPLACE PROCEDURE List_test IS V_ID VARCHAR2(10); BEGIN /*EXECUTE IMMEDIATE 'ALTER TABLE product TRUNCATE PARTITION PART'||V_ID;*/ NULL; END; /

未创建索引 如果ALTER TABLE中使用了INDEX或STORAGE参数，需要删掉。需要在CREATE TABLE中添加约束。 输入：PRIMARY KEY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 CREATE TABLE CTP_ARM_CONFIG ( HOSTNAME VARCHAR2(50), OPNAME VARCHAR2(50), PA RAM TYPE VARCHAR2(2), PARAMVALUE NUMBER(*,0), MODIFYDATE DATE ) SEGMENT CREATION DEFERRED PCTFREE 10 PCTUSED 0 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE( PCTINCREASE 0 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE SPMS_DATA ; ALTER TABLE CTP_ARM_CONFIG ADD CONSTRAINT PKCTP_ARM_CONFIG PRIMARY KEY (HOSTNAME, OPNAME) USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATIS TICS STORAGE( PCTINCREASE 0 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE SPMS_DATA ENABLE; 输出 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 CREATE TABLE CTP_ARM_CONFIG ( HOSTNAME VARCHAR2 (50) ,OPNAME VARCHAR2 (50) ,PARAMTYPE VARCHAR2 (2) ,PARAMVALUE NUMBER ( 38 ,0 ) ,MODIFYDATE DATE ,CONSTRAINT PKCTP_ARM_CONFIG PRIMARY KEY ( HOSTNAME ,OPNAME ) ) /*SEGMENT CREATION DEFERRED*/ /*PCTFREE 10*/ /*PCTUSED 0*/ /*INITRANS 1*/ /*MAXTRANS 255*/ /*NOCOMPRESS*/ /*LOGGING*/ /*STORAGE( BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)*/ /*TABLESPACE SPMS_DATA */ ;

PRIMARY KEY Oracle中如果存在两张表具有相同的主键字段，则在执行ALTER TABLE时需加上表名进行区分。 输入：PRIMARY KEY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 CREATE TABLE CTP_ARM_CONFIG ( HOSTNAME VARCHAR2(50), OPNAME VARCHAR2(50), PARAMTYPE VARCHAR2(2), PARAMVALUE NUMBER(*,0), MODIFYDATE DATE ) SEGMENT CREATION DEFERRED PCTFREE 10 PCTUSED 0 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE( PCTINCREASE 0 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE SPMS_DATA ; ALTER TABLE CTP_ARM_CONFIG ADD CONSTRAINT PKCTP_ARM_CONFIG PRIMARY KEY (HOSTNAME, OPNAME) USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTI CS STORAGE( PCTINCREASE 0 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE SPMS_DATA ENABLE;

数据类型 删除数据类型中的BYTE关键字。 Oracle语法 迁移后语法 1 2 3 4 5 6 CREATE TABLE TBL_ORACLE ( ID Number, Name VARCHAR2(100 BYTE), ADDRESS VARCHAR2(200 BYTE) ); 1 2 3 4 5 6 CREATE TABLE TBL_ORACLE ( ID NUMBER ,Name VARCHAR2 (100) ,ADDRESS VARCHAR2 (200) ) ;

分区（注释分区） oracle配置参数中“#分区表唯一或主键约束”为“comment_partition”。 Oracle语法 迁移后语法 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 CREATE TABLE TBL_ORACLE ( ID Number, Name VARCHAR2(100 BYTE), ADDRESS VARCHAR2(200 BYTE) ) TABLESPACE space1 PCTUSED 40 PCTFREE 0 INITRANS 1 MAXTRANS 255 NOLOGGING PARTITION BY RANGE (ID) ( PARTITION PART_2010 VALUES LESS THAN (10) NOLOGGING, PARTITION PART_2011 VALUES LESS THAN (20) NOLOGGING , PARTITION PART_2012 VALUES LESS THAN (MAXVALUE) NOLOGGING ) ENABLE ROW MOVEMENT; ALTER TABLE TBL_ORACLE ADD CONSTRAINT SAMPLE_PK PRIMARY KEY (ID); 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CREATE UNLOGGED TABLE TBL_ORACLE ( ID NUMBER ,Name VARCHAR2 (100) ,ADDRESS VARCHAR2 (200) ,CONSTRAINT SAMPLE_PK PRIMARY KEY (ID) ) TABLESPACE space1 /*PCTUSED 40*/ PCTFREE 0 INITRANS 1 MAXTRANS 255 /* PARTITION BY RANGE(ID)(PARTITION PART_2010 VALUES LESS THAN(10) , PARTITION PART_2011 VALUES LESS THAN(20) , PARTITION PART_2012 VALUES LESS THAN(MAXVALUE) ) ENABLE ROW MOVEMENT */ ;