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select * from opendatasource('MSDAORA', 'Data Source=XST4;User ID=manager;Password=sjpsjsjs')..MISD.PBCATCOL
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public String convertLink_DB(String s) {
if(s != null){
try{
byte[] b = s.getBytes();
for(int i=0; i<b.length; i++){
b[i] ......
1.¾ø¶ÔÖµ
S:select abs(-1) value
O:select abs(-1) value from dual
2.È¡Õû(´ó)
S:select ceiling(-1.001) value
O:select ceil(-1.001) value from dual
3.È¡Õû£¨Ð¡£©
S:select floor(-1.001) value
O:select floor(-1.001) value from dual
4.È ......
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create sequence myse
increment by 1 --Ôö³¤¶È
start with
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1.view ÏÞÖÆ
create or replace view my_view01
as select * from emp
with check option
/
2.synonym ͬÒå´Ê
create synonym dept for scott.dept;
select * from dept;
3.sysdba ¹«¹²
drop synonym dept;
create public synonym dept for scott.dept;
desc dba_synonyms
......