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5. Oracle TABLESPACE
2022-07-05 06:22:00 【Feuilles froides flottantes】
- Créer un espace de table auto - partitionné géré localementUSERTBS1,Le fichier de données correspondant est20m
create tablespace usertbs1 datafile 'D:\app\Snakewood\oradata\orcl\usertbs1.dbf' size 20m;
- Créer un espace de table géré localementUSERTBS2,La taille de chaque partition est512K
create tablespace usertbs2 datafile 'D:\app\Snakewood\oradata\mydba\usertbs2.dbf' size 20m extent management local uniform size 512k;
- ModifierUSERTBS1Taille de l'espace de table,Changez le fichier de données de cet espace de table en mode d'extension automatique,Max.100M
alter database datafile 'D:\app\Snakewood\oradata\mydba\usertbs1.dbf' autoextend on next 5m maxsize 100m;
- PourUSERTBS2 Espace de table ajouter un fichier de données ,Taille20M
alter tablespace usertbs2 add datafile 'D:\app\Snakewood\oradata\mydba\usertbs2_1.dbf' size 20m;
- Créer un espace de table temporaire TEMPTBS1, Et défini comme l'espace de table temporaire par défaut pour la base de données
create temporary tablespace temptbs1 tempfile 'D:\app\Snakewood\oradata\mydba\ temptbs1_1.dbf' size 20m extent management local uniform size 16m;
alter database default temporary tablespace temptbs1;
- UtiliserSQLOrdre correctUSERTBS1 TABLESPACE pour les transitions d'état en ligne et hors ligne
Alter tablespace USERTBS1 offline;
Alter tablespace USERTBS1 online;
- Créer unSCTableau(SNO,CNO,GRADE),Ajoutertablespace usersPhrases,Et ensuite,USERS L'espace de table est défini en lecture seule ,Essayez deSCAjouter un enregistrement au tableau
create table SC (
SNO varchar2(20) primary key,
CNO varchar2(20) not null,
GRADE number(3) not null
)
tablespace users;
alter tablespace users read only;
insert into SC values (‘B201801’,’C0101’,98);
- Créer un espace de table ROLLBACK UNDOTBS2, Et comme espace de table Undo pour la base de données
create undo tablespace UNDOTBS2 datafile ‘D:\app\Snakewood\oradata\mydba\ UNDOTBS2_1.DBF’ size 20m;
- Oui.USERTBS1 Renommer l'espace de table en USERTBS01
alter tablespace USERTBS1 rename to USERTBS01;
- Supprimer l'espace de tableUSERTBS2, Supprimer à la fois le contenu et les fichiers de données de cet espace de table
drop tablespace USERTBS2 including contents and datafiles;
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