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S:select abs(-1) value
O:select abs(-1) value from dual
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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
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S:select cast(-1.002 as int) value
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import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
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CREATE OR REPLACE PROCEDURE ´æ´¢¹ý³ÌÃû×Ö
(
    ²ÎÊý1 IN NUMBER,
    ²ÎÊý2 IN NUMBER
) IS
±äÁ¿1 INTEGER :=0;
±äÁ¿2 DATE;
BEGIN
END ´æ´¢¹ý³ÌÃû×Ö
2.SELECT INTO STATEMENT
  ½«select²éѯµÄ½á¹û´æÈëµ½±äÁ¿ÖУ¬¿ÉÒÔͬʱ½«¶à¸öÁд洢¶à¸ö±äÁ¿ÖУ¬±ØÐëÓÐÒ»Ì ......

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  select * from (
  select cw2.NO WHOLENO,sp1.ARGUMENTNAME TYPENAME,sp2.ARGUMENTNAME BRANDNAME,sp3.ARGUMENTNAME STYLENAME,sp4.ARGUMENTNAME DEPART,so.OPERATORNAME USERNAME
  from COM_WHOLE_INFO cw2,SYS_OPERATOR so, SYS_PUBLICARGUMENT sp1, SYS_PUBLICARGUMEN ......

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oracle ±í½á¹¹µÄÐÞ¸Ä
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    ALTER TABLE ±íÃû MODIFY(ÁÐÃû Êý¾ÝÀàÐÍ);
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   alter table ......
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