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(
Id Varchar(20) Not Null Primary Key,
Name Varchar(40) Not Null,
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Description CLOB/*ÎļþÃèÊö*/
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*/
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('1001','oracle',BFILENAME(upper('filedir'),'oracle.txt'),'ÕâÊÇÒ»±¾oracleµÄ½Ì³Ì');
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create table liu(a varchar2(20),b number(2))
alter table liu rename to jin
rename jin to cai
alter table cai add c varchar2(30)
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