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ORACLE Rank, Dense_rank, row_number

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SQL> desc user_order;
Name                                      Null?    Type
----------------------------------------- -------- ----------------------------
REGION_ID                                          NUMBER(2)
CUSTOMER_ID                                        NUMBER(2)
CUSTOMER_SALES                                     NUMBER
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SQL> select * from user_order order by customer_sales;
REGION_ID CUSTOMER_ID CUSTOMER_SALES
---------- ----------- --------------
         5           1              151162
        10          29             903383
         6           7     &nb


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CREATE OR REPLACE PROCEDURE sendemailtest
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   mailhost       & ......

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SQL> select next_day(sysdate,'FRIDAY') from DUAL;
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(
  id number(4) not null primary key,
  name varchar2(25)
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create sequence SIMON_SEQUENCE        &nb ......

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