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/oracle/etc/rc0.d/K01oracle // Shutdown# Ln-s/etc/init. d/oracle/etc/rc6.d/K01oracle // restart 6. Usage# Service oracle start // start oracle# Service oracle stop // close oracle# Service oracle restart // restart oracle 7. Test A. Auto Start Last login: Mon Nov 26 19:57:06 2012 from 10.0.0.145[root@ORS ~]# su - oracle[oracle@ORS ~]$ sqlplus "/as sysdba"SQL*Plus: Release 10.2.0.1.0 - Production on Mon Nov 26 20:07:33 2012Copyright (c) 1982, 2005, Oracle. All rights reserved.Connected to:Oracle

Oracle multi-Table query, as its name implies, queries the data you want from multiple tables. Here we will test the emp table and dept table under the scott user. The structure of the two tables is as follows:SQL> select * from dept;DEPTNO DNAME LOC-------------------------------------10 ACCOUNTING NEW YORK20 RESEARCH DALLAS30 SALES CHICAGO40 OPERATIONS BOSTON SQL> select * from emp; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO--------------------------------------------------------------------

emp. ename % type; V_sal emp. sal % type; V_totalsal emp. sal % type; -- used to save the total salary of all employees in each department Begin Open c_dept; Loop Fetch c_dept into r_dept; Exit when c_dept % notfound; Dbms_output.put_line (r_dept.deptno |':'| R_dept.dname |'++'); V_totalsal: =0; Open c_emp (r_dept.deptno ); Loop Fetch c_emp into v_ename, v_sal; Exit when c_emp % notfound; Dbms_output.put_line ('V _ ename :'| V_ename |';'|'V _ sal :'| V_sal ); V_tot

Oracle Advanced query over (partition by...), advanced query .. To facilitate learning and testing, all examples are created under Scott, an Oracle user. create table EMP( empno NUMBER(4) not null, ename VARCHAR2(10), job VARCHAR2(9), mgr NUMBER(4), hiredate DATE, sal NUMBER(7,2), comm NUMBER(7,2), deptno NUMBER(2))alter table EMP add constraint PK_EMP primary key (EMPNO);insert into EMP (empno, ename, job, mgr, hiredate, sal, comm, deptno) values (7369, 'SMITH', 'CLERK', 7902, to

martin salesman 1250 307844 turner salesman 1500 307521 ward salesman 1250 30 18 rows selected. Let's look at the following query results: SQL> select deptno, job, sum (sal) from emp group by deptno, job; Deptno job sum (SAL)-----------------------------10 CLERK 130010 MANAGER 245010 PRESIDENT 500020 analytic 300020 CLERK 190020 MANAGER 297520 software 7407030 MANAGER 285030. SALESMAN 5600 9 rows selected.

// Shutdown# Ln-s/etc/init. d/oracle/etc/rc6.d/K01oracle // restart 6. Usage# Service oracle start // start oracle# Service oracle stop // close oracle# Service oracle restart // restart oracle 7. Test A. Auto Start Last login: Mon Nov 26 19:57:06 2012 from 10.0.0.145[root@ORS ~]# su - oracle[oracle@ORS ~]$ sqlplus "/as sysdba"SQL*Plus: Release 10.2.0.1.0 - Production on Mon Nov 26 20:07:33 2012Copyright (c) 1982, 2005, Oracle. All rights reserved.Connected to:Oracle Database 10g Enterprise Edi

website: Windows Vista and Windows Server 2008 use the IANA suggested ephemeral ports range while the Windows Server 2003 is still using port range of 1250 to 5000. Ephemeral ports are short-lived port, chosen ad-hoc to serve. In most implementations, they usually only add the port numbers by one until get exhausted on port numbers. May be this is just my silly thought of me, but it seems like they implemented like this pseudo-code: [Sourcecod

1068 classic binary match 1069 classic DP 1070 simple questions 1071 simple mathematical questions 1072 search 1073 string processing 1074 DP 1075 dictionary tree 1076 simple questions 1077 1078 DP 1079 game (DP) 1080 DP 1081 classic DP 1082 simple questions 1083 binary match 1084 simple questions 1085 Functions 1086 simple geometric questions 1087 simple DP 1088 string processing 1089 ~ 1096 (8 questions of exercise input and output) 1097 simple mathematical questions 1098 mathematical quest

content: SQL> show recyclebin;ORIGINAL NAME RECYCLEBIN NAME OBJECT TYPE DROP TIME---------------- ------------------------------ ------------ -------------------EMP2 BIN$yBCF53QgQw+A//Sf3M4i9g==$0 TABLE 2014-10-16:14:16:07 View the deleted table in recyclebin: SQL> select * from "bin $ ybcf53qgqw + A // sf3m4i9g ===$ 0 "; empno ename job Mgr hiredate Sal comm deptno ---------- --------- ---------- ------------ ---------- 7369 Smith clerk 7902 17-12 month-80 800 Allen salesman 207499 20-2 month-

SQL> select * from EMP; Empno ename job Mgr hiredate Sal comm deptno------------------------------------------------------------------------------7369 Smith clerk 7902 17-dec-80 800 207499 Allen salesman 7698 20-feb-81 1600 300 307521 ward salesman 7698 22-feb-81 1250 500 307566 Jones manager 7839 02-apr-81 2975 207654 Martin salesman 7698 28-sep-81 1250 1400 307698 Blake manager 7839 01-may-81 2850 307782

',' Clerk ',' 7902 ',' 1980-12-17 ',' 800 ',Null' 20 ')INSERT into EMP(EMPNO,ENAME,JOB,MGR,HireDate,SAL,COMM,DEPTNO)VALUES (7499,' ALLEN ',' Salesman ',' 7698 ',' 1981-02-20 ',' 1600 ',' 300 ',' 30 ')INSERT into EMP(EMPNO,ENAME,JOB,MGR,HireDate,SAL,COMM,DEPTNO)VALUES (7521,' WARD ',' Salesman ',' 7698 ',' 1981-02-22 ',' 1250 ',' 500 ',' 30 ')INSERT into EMP(EMPNO,ENAME,JOB,MGR,HireDate,SAL,COMM,DEPTNO)VALUES (7566,' JONES ',' MANAGER ',' 7839 ',' 198

size, padding adjusted to 0 Double-click the layer to add a gradient. The parameters are as follows: Color Mark Position: #472a2a –0% #c86464 –77% #c86464 –100% Opacity Position: 100%–0% 100%–55% 0%–100% Group all the shape layers into one, then copy the entire group and merge the groups. Rename to Final Save the file. 　　Step 3 New 1250 x 1250 p

Oracel ALTER TABLE adds a primary key to the table primary key Sql>Sql> CREATE TABLE EMP (empno number (4) is not NULL,2 ename varchar2 (10),3 Job Varchar2 (9),4 Mgr Number (4),5 HireDate Date,6 Sal Number (7, 2),7 Comm Number (7, 2),8 Deptno Number (2)); Table created. Sql>sql> INSERT INTO EMP values (7369, ' Smith ', ' clerk ', 7902, to_date (' 17-dec-1980 ', ' dd-mon-yyyy '), 20; 1 row created. sql> INSERT INTO EMP values (7499, ' Allen ', ' salesman ', 7698, to_date (' 20-feb-198

EBCDIC Denmark-norway-euro (1143) IBM01143 IBM EBCDIC (Finland-sweden-euro) 1144 IBM01144 IBM EBCDIC (Italy-euro) 1145 IBM01145 I BM EBCDIC (Spain-euro) 1146 IBM01146 IBM EBCDIC (Uk-euro) 1147 IBM01147 IBM EBCDIC (Fran Ce-euro) 1148 IBM01148 IBM EBCDIC (International-euro) 1149 IBM01149 IBM EBCDIC (Iceland Ic-euro) 1200 UTF-16 Unicode 1201 Unicodefffe Unicode (Big-endian) 1250 windows-1250 EAN (Windows) 12

); Set sqlprompt ' gname> ' set termout on After using the Scott user login, the following [Oracle@rhel65 ~]$ sqlplus scott/oracle sql*plus:release 11.2.0.1.0 on Sat off Production 00:11:26 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to:oracle Database 11g Enterprise Edition release 11.2.0.1.0-64bit Production with the partitioning, OLAP, Da Ta Mining and real application testing options Scott@orcl>select * from EMP; EMPNO ename JOB MGR hiredate SAL COMM DEPTNO--

different values are asked for standard deviation Sql> Select StdDev (sal) from Scott.emp; StdDev (SAL) ----------- 1182.5032 Sql> Select StdDev (Distinct sal) from Scott.emp; StdDev (Distinctsal) ------------------- 1229.951 64.VARIANCE (distinct| All) To find covariance Sql> Select Variance (sal) from Scott.emp; Variance (SAL) ------------- 1398313.9 65.GROUP by Used primarily to count a group of numbers Sql> Select Deptno,count (*), sum (SAL) from the Scott.emp group by Deptno; DEPTNO COUN

7698 22-feb-81 1250 500 30 JONES MANAGER 7839 02-apr-81 2975 20 MARTIN salesman 7698 28-sep-81 1250 1400 30 BLAKE MANAGER 7839 01-may-81 2850 30 CLARK MANAGER 7839 09-jun-81 2450 10 SCOTT ANALYST 7566 19-apr-87 3000 20 KING PRESIDENT 17-nov-81 5000 10 TURNER salesman 7698 08-sep-81 1500 0 30 ADAMS Clerk 7788 23-may-87 1100 20 JAMES Clerk 7698 03-dec-81 950 30 FORD ANALYST 7566 03-dec-81 3000 20

10. If The Deptno is isn't, then the case statement'll fall through to the ELSE clause, which would return UN Assigned. Note this with a simple case statement, no comparison operators can be used. Searched case statementsThe searched case statement is the most powerful cousin of the simple case statement. The searched case statement are like a if...then...else structure, and can be used to conditionally search and replace values Using logical operators and multiple conditions. Let ' s look at a