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//ʹÓÃ×Ô¶¨Ò庯Êý¶¨ÒåÈÕÆÚ¸ñʽ
to_date('1982-11-11','yyyy-mm-dd')
to_date('1982/11/11','yyyy/mm/dd')
//Ï£ÍûÔ±¹¤scottµÄ¸Ú룬¹¤×Ê£¬²¹ÖúÓësmithÔ±¹¤Ò»Ñù
update emp set (job,sal,comm)=(select job,sal,comm from emp where ename='SMITH') where ename='SCOTT';
||-------  javaʹÓÃoracle   -------||
//jdbc-odbc
//1.¼ÓÔØÇý¶¯ Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//2.µÃµ½Á¬½Ó conn = DriverManager.getConnection("jdbc:odbc:oracle_source","scott","tiger");
//jdbcÖ±Á¬
//1.¼ÓÔØÇý¶¯ Class.forName("oracle.jdbc.driver.OracleDriver");
//2.µÃµ½Á¬½Ó conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCL","scott","tiger");
||-------  oracleµÄÊÂÎï´¦Àí  -------||
dmlÓï¾ä //Ôöɾ¸Ä
µ±Ö´ÐÐÊÂÎñ²Ù×÷ʱ£¨dmlÓï¾ä£©£¬oracle»áÔÚ±»×÷ÓõıíÉϼÓËø£¬·ÀÖ¹ÆäËüÓû§¸Ä±íµÄ½á¹¹£¬ÕâÀï¶ÔÎÒÃÇÓû§À´½²ÊǷdz£ÖØÒªµÄ
//»Ø¹öÃüÁî
savepoint a; //´æ´¢»Ø¹öµã
rollback to a; //»Ø¹öµ½´æ´¢µã
rollback //È¡ÏûÈ«²¿ÊÂÎï
commit;  //µ±Ö´ÐÐÁËcommit¾Í²»ÄܻعöÁË
exit;  //Í˳öÔò×Ô¶¯Ìá½»ÊÂÎñ
//javaʹÓÃÊÂÎñ 
conn.setAutoCommit(false); //ÉèÖò»×Ô¶¯Ìá½»
conn.commit();   //ÊÖ¶¯Ìá½»
conn.rollback();  //Èç¹û³öÏÖÒì³£»Ø¹öÊÂÎï
//Ö»¶ÁÊÂÎֻÔÊÐí²éѯµÄ²Ù×÷£¬¶ø²»ÔÊÐíÆäËûdmlµÄ²Ù×÷
set transaction read only;
||-------  oracleµÄsqlº¯Êý  -------||
//
//×Ö·ûº¯Êý
//
lower(char)  //Сд
upper(char)  //´óд
length(char)  //³¤¶È
substr(char,m,n) //È¡×Ö·û´®µÄ×Ó´®
replace(char1,search_string,replace_string) //Ìæ»»º¯Êý
instr(char1,char2,[,n[,m]]) //È¡×Ó´®ÔÚ×Ö·û´®µÄλÖÃ
//½«ËùÓÐÔ±¹¤µÄÃû×Ö°´Ð¡Ð´µÄ·½Ê½ÏÔʾ
select empno,lower(ename) from emp;
//½«ËùÓÐÔ±¹¤µÄÃû×Ö°´´óдµÄ·½Ê½ÏÔʾ
select empno,upper(ename) from emp;
//ÏÔʾÕýºÃΪ5¸ö×Ö·ûµÄÔ±¹¤ÐÕÃû
select * from emp where length(ename) = 5;
//ÏÔʾËùÓÐÔ±¹¤Ãû×ÖÇ°3¸ö×Ö·û
select substr(ename,1,3) from emp;
//ÒÔÊ××Öĸ´óдµÄ·½Ê½ÏÔʾËùÓÐÔ±¹¤ÐÕÃû
select (upper(sub


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alter system set log_archive_start=true scope=spfile;
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create pfile from spfile
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ARCSDE for Oracle Êý¾Ý´æ´¢ÐÎʽΪst_geometry

SELECT sde.st_area(zone) from sde.test1 ORDER BY name;//
SELECT shape from schools ORDER BY name;
SELECT objectid, sde.st_astext(SDE.ST_POINTfromSHAPE(shape,0)) AS points from schools;
SELECT name, sde.st_x (zone) "The X coordinate" from test ; //ÕýÈ·Ö´ÐÐ
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