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SQL code:
SQL> select to_char(125,'xxxx') from dual;
TO_CHAR(125,'XXXX')
--------------------------------------------------------------------------------
7d
SQL> select to_char(7d,'xxx') from dual;
TO_CHAR(7.0E+000D,'XXX')
--------------------------------------------------------------------------------
7
SQL> select to_char(to_char(125,'xxxx'),'xxx') from dual;
select to_char(to_char(125,'xxxx'),'xxx') from dual
ORA-01722: ÎÞЧÊý×Ö
2.Ë÷Òý¸ß¶ÈÊÇʲôһ¸ö¸ÅÄî: pga_aggregate_target?
3.analyze index indexname validate structureÓÐʲôÓã¿--ÅжÏÊÇ·ñÐèÒªÖØ½¨Ë÷Òý?
4.ÒÔÏ´úÂëÔõÑù²ÅÄÜÊä³ö¡°Test successed!¡±
SQL code:
SQL> set serveroutput on;
SQL> create or replace and compile java source named test_java as
2 public class FirstJava{
3 public static void test(){
4 System.out.println("Test successed!");
5 }
6 };
7 /
Java created
SQL>
SQL> create or replace procedure test_java is
2 language java name 'FirstJava.test()';
3 /
Procedure created
SQL> exec hello;
PL/SQL procedure successfully completed
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