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ENAME JOB MGR HIREDATE SAL COMM ------------------------------------------------------------------------- DEPTNO ---------- 7369 smith clerk 7902-12-80 800 20 7499 allen salesman 7698 20-2 months-81 1600 300 30 7521 ward salesman 7698 22-2 month-81 1250 500 30 EMPNO ENAME JOB MGR HIREDATE SAL COMM ------------------------------------------------------------------------- DEPTNO ---------- 7566 jones manager 7839 2975-81 20 7654 martin salesman 7

) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/57/1F/wKioL1SSSCnx4SxAAAGhhsqsxcc610.jpg "title=" K% I%i58kr98w3h{nnr6.jpg "alt=" Wkiol1ssscnx4sxaaaghhsqsxcc610.jpg "/>Radical Cure Method:To http://www.openprinting.org/download drivers such as Foo2zjs or Foo2xqx , properly installed to Linux, can be like windows, Linux automatically imports firmware to hp1020.The installation tutorial is also detailed in the website, no longer say here.List of supported HP printers for two installation

Cure Method :To http://www.openprinting.org/download drivers such as Foo2zjs or FOO2XQX, properly installed to Linux, you can like Windows, Linux automatically import firmware to hp1020.The installation tutorial is also detailed in the website, no longer say here.List of supported HP printers for two installation packages: Foo2zjs supported Printer b/w Color Driver Notes Minolta/qms Magicolor 2300 DL Yes Yes Foo2zjs Tested by R

MAX_SAL_50 MAX_SAL_75 ---------- ------------ ---------- KING 5000 10 0 5000 3725 CLARK 2450 10. 5 5000 3725 2450 1875 MILLER 1300 10 1 5000 3725 2450 1875SCO TT 3000 20 0 3000 3000 2975 FORD 1100 20 0 3000 3000 3000 2975 JONES 1100 20. 5 3000 3000 2975 1100 ADAMS 1100 20. 75 3000 3000 2975 1100 SMITH 800 20 1 3000 3000 2975 1100 BLAKE 2850 30 0 2850 1575 1375 ALLEN 1250 30. 2 2850 1575 1375 1250 TURNER 15

on users; User created. SQL> GRANT CREATE SESSION, CREATE ANY TABLE, ALTER ANY TABLE, 2 drop any table, lock any table, select any table, 3 create any index, CREATE ANY TRIGGER 4 to tj; Grant succeeded. SQL> GRANT EXECUTE_CATALOG_ROLE TO TJ; Grant succeeded. 2. Log On with the TJ user and create a table DEMO. As the original table for online redefinition, add a primary key and an index to the table. SQL> conn tj/tj Connected. SQL> create table demo as select empno, ename, sal, deptno from scott

MAX_SAL_50 MAX_SAL_75 -------------------------------------------------------------------------------- KING 5000 10 0 5000 3725 2450 CLARK 2450 5000 3725 2450 1875 MILLER 1300 10 1 5000 3725 2450 SCOTT 3000 20 0 3000 3000 2975 FORD 3000 20 0 3000 3000 2975 JONES 2975 20. 5 3000 3000 2975 1100 ADAMS 1100 20. 75 3000 3000 2975 SMITH 800 20 1 3000 3000 2975 BLAKE 2850 30 0 2850 1575 1375 ALLEN 1600 30. 2 2850 1575 1375 1250 TURNER 1500 30. 4 2850 1575 1

Common Oracle functions: nvl/nullif/case when/wm_concat/replace 1. nvl function nvl converts a null value to an actual value. The data type can be date, number, character, and data type must match: nvl (commision, 0) nvl (hiredate, '01-JAN-87 ') nvl (job_id, 'no manager') nvl (to_char (job_id), 'no manager') nvl can convert any data type, however, the returned value of the converted data type must be of the expr type of the first parameter nvl (expr1, expr2. example: date, number, varchar2 or ch

, (H) rw11-10 drop-type fuse.5, (H) rw12-10 drop-type fuse.6, (H) prwg1-10 (F) drop-type fuse.7, (H) prwg2-35 drop-type fuse.zw6-12/630-20 (Wholesale sales)zw6-12/630-25 (Wholesale sales)zw7-40.5/1250-31.5 (Wholesale sales)zw7-40.5/1600-31.5 (Wholesale sales)zw8-12/630-20 (Wholesale sales)zw8-12/630-25 (Wholesale sales)zw10-12/630 (Wholesale sales)zw10-12/630-20 (Wholesale sales)zw10-12/630-25 (Wholesale sales)zw32-12/630-20 (Wholesale sales)zw32-12/6

, (H) rw11-10 drop-type fuse.5, (H) rw12-10 drop-type fuse.6, (H) prwg1-10 (F) drop-type fuse.7, (H) prwg2-35 drop-type fuse.zw6-12/630-20 (Wholesale sales)zw6-12/630-25 (Wholesale sales)zw7-40.5/1250-31.5 (Wholesale sales)zw7-40.5/1600-31.5 (Wholesale sales)zw8-12/630-20 (Wholesale sales)zw8-12/630-25 (Wholesale sales)zw10-12/630 (Wholesale sales)zw10-12/630-20 (Wholesale sales)zw10-12/630-25 (Wholesale sales)zw32-12/630-20 (Wholesale sales)zw32-12/6

Use the Oracle analysis function ROW_NUMBER () 1. row_number () over () sorting function: (1) row_number () over () group sorting function: When the row_number () over () function is used, the execution of grouping and sorting in over () is later than that of where group by order. Partition by is used to group A result set. If it is not specified, it regards the entire result set as a group. What is different from the aggregate function is that it can return multiple records in a group, aggregat

Sequence Number functions provided by Oracle Take the EMP table as an example:1: rownum is the simplest sequence number, but the value is determined before order.Select rownum, T. * from EMP t order by enameRow rownum empno ename job Mgr hiredate Sal comm deptno1 11 7876 Adams clerk 7788 1987-5-23 1100 202 2 7499 Allen salesman 7698 1981-2-20 1600 300 303 6 7698 Blake manager 7839 1981-5-1 2850 304 7 7782 Clark manager 7839 1981-6-9 2450 105 13 7902 Ford analyst 7566 1981-12-3 3000 206 12 7900

--------------------------------------------------------------------------------KING 5000 10 0 5000 3725 2450CLARK 2450 5000 3725 2450 1875MILLER 1300 10 1 5000 3725 2450SCOTT 3000 20 0 3000 3000 2975FORD 3000 20 0 3000 3000 2975JONES 2975 20. 5 3000 3000 2975 1100ADAMS 1100 20. 75 3000 3000 2975SMITH 800 20 1 3000 3000 2975BLAKE 2850 30 0 2850 1575 1375ALLEN 1600 30. 2 2850 1575 1375 1250TURNER 1500 30. 4 2850 1575 1375 1250WARD 1250 30. 6 2850 1575

max_sal_50 max_sal_75---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------KING 5000 10 0 5000 3725 2450 1875CLARK 2450 10.5 5000 3725 2450 1875MILLER 1300 10 1 5000 3725 2450 1875SCOTT 3000 20 0 3000 3000 2975 1100FORD 3000 20 0 3000 3000 2975 1100JONES 2975 20.5 3000 3000 2975 1100ADAMS 1100 20.75 3000 3000 2975 1100SMITH 800 20 1 3000 3000 2975 1100BLAKE 2850 30 0 2850 1575 1375 1250ALLEN 1600 30.2 2850 1575 1375 1250TURNER 1500 30.4 2850 1575 1375 1250WARD

quality and balance of the function, the former Japanese chase, it seems to be almost the meaning, the latter is in the auto-focus on the field of Fame. The C35 af of the 77 Konica (Konica) is an autofocus PS machine, while the 81 Pentax Me-f extends autofocus to the SLR field. The 1985 Minolta Minoltaaf was also a milestone, announcing the emergence of a truly complete autofocus system. Although the α7000

to information transmission of things, and on the other hand, it refers to the acceptance and feedback of people, so that they can actively understand and grasp the information of any things. 5) The common principle is to coordinate and unify the three types of interfaces. Functions, emotions, and environments cannot be isolated. Vi. Application Methods in the design field The Design Interface contains a wide range of factors, but it can only be focused and emphasized in application. Although t

In other words, now the scanning of the copy scanning machine is very rich, the scanned file can be sent by mail, can be sent to Windows sharing. Always use Windows sharing, but the Windows system takes up a little bit of memory and wants to put this share under CentOS.Installed version of samba4.1.1 (ip:172.16.4.20)The printer is Konica (ip:172.16.4.30)1, first, encountered the first phenomenon, after the SMB service is enabled, Win7 under no passwor

set operators--Generates an EMP table with the same structure for the set operation generation environment, named EMP2Idle> select * from EMP; EMPNO ename JOB MGR hiredate SAL commdeptno----------------------------------------------------- --------------------------7369 SMITH clerk 7902 1980-12-17 7499 ALLEN salesman 7698 1981-02-20 1600300 7521 WARD salesman 7698 1981-02-22 1250500 7566 JONES MANAGER 7839 1981-04-02 2975 7654 MARTIN salesman 7698 1981-09-28

another rowArg2 is the offset of the current row partition that you want to retrieve. is a positive offset, when one retrieves the number of previous rows back.Arg3 is the value returned when the number represented by Arg2 exceeds the range of the grouping. Look at a few SQL statements: Statement one: Select Row_number () over (order by sale/cnt Desc) as sort, sale/cntFrom (Select-60 as sale,3 as CNT from dual unionSelect sale,6 as CNT from dual unionSelect sale,5 as CNT from dual unionSelect-2

automatically submitted during the ddl operation, the database automatically submits the transaction after the set autocommit on statement is executed. When the disconnect database is used, the transaction automatically rolls back the rollback and the transaction ends. 3) Submit transactions and roll back all transactions. 4) SET transaction retention points. perform the following test for some transactions: [SQL] SCOTT @ orcl # select * from emp; empno ename job mgr hiredate sal comm deptno --

number of rows in the past is retrieved.Arg3 is the value returned when the number indicated by arg2 exceeds the group range. Check Several SQL statements: Statement 1: Select row_number () over (order by sale/cnt desc) As sort, sale/CNTFrom (Select-60 as sale, 3 as CNT from dual UnionSelect 24 as sale, 6 as CNT from dual UnionSelect 50 as sale, 5 as CNT from dual UnionSelect-20 as sale, 2 as CNT from dual UnionSelect 40 as sale, 8 as CNT from dual ); Execution result: Sort sale/CNT---------