方法一、使用add constraint 方法添加主键约束 alter table 表名 add constraint 主键名 primary key (列名1,列名2,...) 方法二、使用索引创建主键 (和方法一没有区别,可以将方法一理解为省略了using index) alter table 表名 add constraint 主键名 primary key (列名1,列名2,...) using index [index_name...
using index [index_name];当省略using index后⾯的index_name时,创建主键的同时创建同名索引;当使⽤已有索引index_name创建主键时,注意索引列和主键列应该相同才能创建成功。⽅法三、直接添加主键 alter table 表名 add primary key (列名1,列名2,...) ;同样,创建主键的同时创建同名索引。⽅法四、...
USING INDEX (Create unique index uid_test_uid on test_uid(name) tablespace TABLESPACE2); ) 当然,也可以分部来处理. create table testone(name varchar2(10 char)) TABLESPACE1; ALTER TABLE TESTONE ADD CONSTRAINT PK_TESTONE1 PRIMARY KEY(NAME) USING INDEX TABLESPACE TABLESPACE2; 作为一种好习惯,不...
现需要添加主键,数据量很大,想并行建立。 1.直接添加,提示ora-3001:未实施的功能;只能单线程建立主键 代码语言:javascript 复制 SQL>alter table t add constraint pk_t primarykey(object_id)using index online parallel2;alter table t add constraint pk_t primarykey(object_id)using index online parallel2O...
在创建表时,只能指定主键与唯一键的索引表空间,其它类型的索引,只能通过CREATE INDEX/ALTER INDEX来指定。参考如下:create table test1 (id number(10),name varchar2(20),age number(3),constraint pk_test1 primary key(id) using index tablespace tbs_ind )tablespace tbs_cur;...
--创建主键约束 alter table STUDENT_PAR add primary key (S_ID) using index tablespace PARTITION; --创建唯一索引约束 alter table STUDENT_PAR add constraint U_1_PAR unique (S_NAME) using index tablespace PARTITION; --创建check约束 alter table STUDENT_PAR add constraint C_1_PAR check (s_sex...
ALTER TABLE MUSICSTORE.CARTS ADD ( PRIMARY KEY (RECORDID) USING INDEX TABLESPACE MUSICSTORE_TBLSPACE PCTFREE 10 INITRANS 2 MAXTRANS 255 STORAGE ( PCTINCREASE 0 BUFFER_POOL DEFAULT ) ENABLE VALIDATE); ALTER TABLE MUSICSTORE.GENRES DROP PRIMARY KEY CASCADE; DROP TABLE MUSICSTORE.GENRES CASCADE ...
create table account ( account_number number(10,0), account_balance decimal(38,2), account_trans_ts timestamp(6), account_trans_type varchar2(30), primary key (account_number) using index ); 目标端 TiDB 分布式数据库 create table account ( account_number int, account_balance decimal(38,2...
SQL> drop index ziggy_id_i1; Index dropped. SQL> altertableziggy add primary key(id) using index (create unique index ziggy_id_i2on ziggy(id)); Table altered. This means the constraint is not automatically enforced (unless we disable it with validate, thus locking the table) and the ...
alter table test_part add constraint test_part_pk primary key (ID) using INDEX; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 2.3 按天创建 NUMTODSINTERVAL(1, 'day') --按天创建分区表 create table test_part ( ID NUMBER(20) not null, ...