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SQL> DESC TEST  ²âÊÔ±í:        Name    Type            Nullable    Default Comments
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TO_DATE¸ñʽ
Day:
dd number 12
dy abbreviated fri
day spelled out friday
ddspth spelled out, ordinal twelfth
Month:
mm number 03
mon abbreviated mar
month spelled out march
Year:
yy two digits 98
yyyy four digits 1998
24Сʱ¸ñʽÏÂʱ¼ä·¶Î§Îª£º 0:00:00 - 23:59:59....
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CREATE PUBLIC DATABASE LINK ASXT_LINK ;
CONNECT TO ASXT IDENTIFIED BY PASSWORD ;
USING '(DESCRIPTION =(ADDRESS_LIST =(ADDRESS =(PROTOCOL = TCP)(HOST = 192.168.0.100)(PORT = 1521)))(CONNECT_DATA =(SERVICE_NAME = AAA)))'; ......
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