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describe TABLE_NAME; --ÃèÊö
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create table as select XXXXXX
insert into TABLE_NAME (reac_1,reac_2.....) values(v1,v2)
insert into TABLE_NAME (select * from ..........)
update TABLE_NAME set reac_1=v1,................... where .....
delete from TABLE_NAME where ...................
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select [all|distinct top n[percent]] with ties SELECT_LIST
[into[NEW_TABLE_NAME]]
[from {TABLE_NAME,....}][(OPTIMIZWE_HINTS)]
[where CLAUSE]
[group by CLAUSE]
[order by CLAUSE]
[compute CLAUSE]
[for browse]
--distinct ¼ìË÷ΨһµÄ±íÁÐÖµ
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= != <> like and or between XXX and XXX in(XX,XX) union (ºÏ²¢²éѯ)
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alter table TABLE_NAME add REAC_NAME REAC_TYPE --¸Ä±äÁÐ(Ìí¼ÓÁÐ)
EG: alter table scott.emp add name_my char(10) NULL;
alter table TABLE_NAME modify(name_my char(10)) --¸Ä±äÁ㤶È
alter table TABLE_NAME DROP COLUMN name_my --dropÁÐ
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count()ºÏ¼Æ sum()ÇóºÍ max() min()
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str(a,l,d)ת»¯Îª×Ö·û´®,aΪÊýÖµ,lΪ³¤,dΪ±£ÁôСÊýλÊý
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extent--×îС¿Õ¼ä·ÖÅ䵥λ --tablespace management
block --×îСi/oµ¥Î» --segment management
create tablespace james
datafile '/export/home/oracle/oradata/james.dbf'
size 100M ¡¡¡¡¡¡¡¡¡¡¡¡--³õʼµÄÎļþ´óС¡¡
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--ʹÓÃDBA´´½¨Á½¸öÓû§
create user gubo identified by gubo;
create user gubo2 identified by gubo;
--¸øÁ½¸öÓû§Á¬½ÓȨÏÞ
grant create session to gubo;
grant create session to gubo2;
--¸øÆäÖÐÒ»¸öÓû§·ÃÎʱí¿Õ¼äµÄȨÏÞ
grant unlimited tablespace to gubo;
--Á¬½ÓÆäÖÐÓû§£¬´´½¨±í
--conn gubo
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