SQL> select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') from dual;TO_CHAR(SYSDATE,'YY
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2003-10-31 17:13:29SQL> select to_char(trunc(sysdate),'yyyy-mm-dd hh24:mi:ss') from dual;TO_CHAR(TRUNC(SYSDA
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2003-10-31 00:00:00
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2003-10-31 17:13:29SQL> select to_char(trunc(sysdate),'yyyy-mm-dd hh24:mi:ss') from dual;TO_CHAR(TRUNC(SYSDA
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2003-10-31 00:00:00
解决方案 »
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