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doc-exports/docs/dws/tool/dws_07_6827.html
Lu, Huayi 346ac31da9 DWS TG 8.1.3.200 VERSION 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Reviewed-by: Jiang, Beibei <beibei.jiang@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2023-08-28 09:20:17 +00:00

5.5 KiB
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Index Migration

Unique Index

Netezza Syntax

Syntax After Migration

 
CREATE TABLE  prod
(
     prod_no              number(6)      not null    unique,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
)
DISTRIBUTE ON (prod_no)
ORGANIZE   ON (prod_no, prod_name)
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null     
     CONSTRAINT UQ_prod unique,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
)
DISTRIBUTE ON (prod_no)
ORGANIZE   ON (prod_no, prod_name)
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null    PRIMARY KEY,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
)
DISTRIBUTE ON (prod_no)
ORGANIZE   ON (prod_no, prod_name)
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null,
     prod_name         national character varying(32)      not null,
     prod_desc          clob,
     constraint          uq_prod    UNIQUE (prod_no)
)
DISTRIBUTE ON (prod_no)
ORGANIZE   ON (prod_no, prod_name)
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
)
DISTRIBUTE ON (prod_no)
ORGANIZE   ON (prod_no, prod_name)
;
ALTER TABLE prod
    ADD constraint          uq_prod    UNIQUE (prod_no);

CREATE TABLE  prod
(
     prod_no              number(6)      not null   /* unique */,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
) WITH(ORIENTATION=COLUMN)
DISTRIBUTE BY HASH (prod_no)
/* ORGANIZE   ON (prod_no, prod_name) */
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null   
  /* CONSTRAINT UQ_prod unique */,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
) WITH(ORIENTATION=COLUMN)
DISTRIBUTE BY HASH (prod_no)
/* ORGANIZE   ON (prod_no, prod_name) */
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null   /* PRIMARY KEY */,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
) WITH(ORIENTATION=COLUMN)
DISTRIBUTE BY HASH (prod_no)
/* ORGANIZE   ON (prod_no, prod_name) */
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null,
     prod_name         national character varying(32)      not null,
     prod_desc          clob  /*,
    constraint          uq_prod    UNIQUE (prod_no)  */
) WITH(ORIENTATION=COLUMN)
DISTRIBUTE BY HASH (prod_no)
/* ORGANIZE   ON (prod_no, prod_name)*/
;
----------
CREATE TABLE  prod
(
     prod_no              number(6)      not null,
     prod_name         national character varying(32)      not null,
     prod_desc          clob
)
DISTRIBUTE BY HASH (prod_no)
/*ORGANIZE   ON (prod_no, prod_name)*/
;
/*
ALTER TABLE prod
    ADD constraint          uq_prod    UNIQUE (prod_no);
*/

This feature is applicable only for COLUMN store. For ROW store, Unique Index should not be commented.

Parent topic: Netezza Syntax Migration