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; deptno dname loc 1 10 accounting new YORK 2 20 research dallas 3 30 sales chicago 4 40 OPERATIONS BOSTON The use of powerful with clausesWithDept_costs as (SELECT D.dname, SUM (e.sal) as Dept_totalFrom EMP E, Dept DWHERE E.deptno = D.deptnoGR

), (7,1, ' EA ', 1.00), (10,2, ' EA ', 1.00), (11,15, ' EA ', 1.00), (12,3, ' EA ', 1.00), ( 13,4, ' EA ', 1.00), (14,2, ' ML ', 205.00), (15,7, ' EA ', 13.00), (16,12, ' G ', 15.00), (17,16, ' G ', 15.00)CREATE TABLE dbo. Cities(Cityid char (3) NOT null primary key,City varchar (+) is not NULL,Region varchar (+) NULL,Country varchar (+) NOT NULL);CREATE TABLE dbo. Roads(City1 char (3) NOT NULL references dbo. Cities,City2 char (3) NOT NULL references dbo. Cities,distance int NOT NULL,Primary KE

(7,2), deptno number (2) CONSTRAINT FK _deptno REFERENCES DEPT); CREATE TABLE Bonus ( ename VARCHAR2 (Ten), job VARCHAR2 (9) , sal number, comm number); CREATE TABLE Salgrade ( grade number, losal number, hisal number);8. Insert test Data--deptINSERT into Dept VALUES (' ACCOUNTING ', ' NEW YORK '); INSERT into Dept VALUES ("DALLAS"); INSERT into Dept VALUES (' SALES ', ' CHICAGO '); INSERT into Dept VALUES (+, ' OPERATIONS ', ' BOSTON '); 9. Inser

, 0 rows affected (0.02 sec)Mysql>Insert test data:mysql> INSERT into Dept VALUES(Ten, ' ACCOUNTING ', ' NEW YORK ');Query OK, 1 row Affected (0.00 sec)mysql> INSERT into Dept VALUES(+, ' DALLAS ');Query OK, 1 row affected (0.01 sec)mysql> INSERT into Dept VALUES(+, ' SALES ', ' CHICAGO ');Query OK, 1 row Affected (0.00 sec)mysql> INSERT into Dept VALUES(+, ' OPERATIONS ', ' BOSTON ');Query OK, 1 row Affected (0.00 sec)Mysql>mysql> INSERT into EMP VAL

is a real case, we in the CCC is the world-renowned car insurance company project, we regularly and CCC headquarters in Chicago synchronization of about 8GB. dmp files into our database, because of security reasons need to rely on. DMP Interchange file in the form of 0 morning synchronization to the Chinese database, and in the t+ 1 the next morning before 8:00 complete synchronization.So, our DBA began to come ...From 0 morning to the second day 8:0

" Access to multiple databasesUse mydb2go Create user DBA for login dba with Default_schema=dbogo exec sp_addrolemember ' db_owner ', ' DBA ' GoAt this point, the DBA can have two database mydb, MYDB2 administrative rights!Complete code example--Create DATABASE MyDB and MYDB2--Create a test table in MyDB and MYDB2, which is the DBO schema by defaultCREATE TABLE DEPT (DEPTNO int primary KEY, dname varchar, LOC varchar);--Insert DataINSERT into DEPT values (101, ' ACCOUNTING ',

--Create test tables in MyDB and MYDB2, default is dbo This schema create TABLE DEPT (DEPTNO int primary key, Dname VAR CHAR (+), LOC VARCHAR (13)); --Inserting data insert INTO DEPT VALUES (101, ' ACCOUNTING ', ' NEW YORK '); INSERT into DEPT VALUES (201, ' ', ' DALLAS '); INSERT into DEPT VALUES (301, ' SALES ', ' CHICAGO '); INSERT into DEPT VALUES (401, ' OPERATIONS ', ' BOSTON '); --View database schema, user's stored procedure select * FROM sy

Tags: style blog http color io ar for strong SPXML query in SQL Server: FOR XML specifies pathObjectiveIn SQL Server, XML queries can specify Raw,auto,explicit,path. This article uses some examples to introduce XML queries that specify path in SQL Server.Path number of referencesPATH (' parameters '), which is used to rename the row, and row is the default generated name. Select ' Hui ' FOR XML path result:Select ' Hui ' FOR XML path (' root ') result:Columns without a nameSelect ' Hui Li ' for

, ' Mouse House ', ' 333 fromage Lane ', ' Columbus ', ' OH ', ' 43333 ', ' USA ', ' Jerry Mouse '); INSERT into Customers (c ust_id, Cust_name, cust_address, cust_city, Cust_state, Cust_zip, Cust_country, Cust_contact, Cust_email) VALUES (10003, ' Wascals ', ' 1 Sunny ', ' Muncie ', ' in ', ' 42222 ', ' USA ', ' Jim Jones ', ' [emailprotected] '); INSERT into Customers (c ust_id, Cust_name, cust_address, cust_city, Cust_state, Cust_zip, Cust_country, Cust_contact, Cust_email) VALUES (10004, ' Y

Tags: create table ICA value UTF8 official LTE base COM table nameToday, 2018-06-29, build a good model first.Create a data tableWe use the way we build databases and tables first. Need to have a MySQL database available first. You can install a MySQL database yourself.Data model, I still use the instance employee and departmental table that comes with Oracle data. SQL statements, I have been modified according to MySQL syntax, directly can run.All the source code for this tutorial is on GitHub.

=ORACLE11) (port=1521)) connectingto ( Description= (address= (PROTOCOL=IPC) (key=extproc1521)) Statusofthelistener------------------- -----alias listener version TNSLSNRforLinux:Version 11.2.0.1.0-production startdate 29-aug-201610:47:44 uptime 0days0hr.0min.0 SEC tracelevel Off security on:localosauthentication snmp off ListenerParameter file/opt/oracle/app/product/11.2.0/dbhome_1/network/admin/listener.ora Listener logfile/opt/oracle/app/diag/tnslsnr/oracle11/ Listener/alert/log.xml listening

,loc) values (23, ' Zhong ', ' Guo '); sql>select*fromdept; 23 in Guo 10accounting newyork 20research dallas 30 sales chicago 40operations boston 6rowsselected.To view the creation process for a table:Use Dbms_metadata. GET_DDL (' TABLE ', ' table_name ') functionsql>setpagesize0; sql>setlong1000; Sql>selectdbms_metadata. GET_DDL (' TABLE ', ' STUDENT ') fromdual; CREATETABLE "SCOTT". " STUDENT " (" SID "number (2,0)," SNAME "varchar2 () notnullenab

routine has been closed.Sql> StartupThe ORACLE routine has been started. Total System Global area 849530880 bytesFixed Size 1339824 bytesVariable Size 499125840 bytesDatabase buffers 343932928 bytesRedo buffers 5132288 bytesThe database is loaded.The database is already open. Basic SQL Statement Operations:/* Create a new table checksSql> CREATE TABLE checks (check# Int,payee char), amout decimal (14,2), remarks char (60));The table is created. /* SaveSql> Save Checks.sqlFile Checks.sql has bee

---------- -------------- ------------- 30 SALES CHICAGO The difference between replace and is that they have different scopes. the referenced replace variable is only valid in the current SQL statement, the replace variable of references is valid in the current session.. The following examples are often cited to illustrate SQL> SELECT 2+NUM FROM DUAL; Enter value for num: 2 old 1: SELECT 2+NUM FROM DUAL new 1: SELECT

CREATE an oracle exercise TABLE SQL code CREATE TABLE DEPT (DEPTNO NUMBER (2) CONSTRAINT PK_DEPT PRIMARY KEY, DNAME VARCHAR2 (14), LOC VARCHAR2 (13 )); create table emp (empno number (4) CONSTRAINT PK_EMP primary key, ENAME VARCHAR2 (10), JOB VARCHAR2 (9), mgr number (4), hiredate date, sal number (), comm number (), deptno number (2) CONSTRAINT FK_DEPTNO references dept); insert into dept values (10, 'accounting', 'New YORK '); insert into dept values (20, 'Research ', 'Dallas'); insert into de

. The rows in the data stream are separated by line delimiters, and each column in the row is defined by the start and end positions. For example: 10headOffice160corporatenewyork 15newengland50easternboston 20midatlantic10easternwashington 38southatlantic30easternatlanta 42greatlakes100midwestchicago 51plains140midwestdallas 66pacific270westernsanfrancisco 84mountain290westerndenver 2. del -- specifies an ascii file, which is also an ascii transfer stream. The rows

Toronto, Chicago, Detroit and buffalo. Even with such a large network, in 1990s, CN still felt the competition pressure from other land transportation methods. To preserve the market share and increase profits, CN needs detailed information, such as asset utilization rate, profit of transportation lines, and the type of services the customer wants. Today, Data Warehouses Based on DB2forOS/390 are the source of these important information. It is frequ

file format. 1. asc -- a non-bounded ascii file, which is an ascii plain stream. The rows in the data stream are separated by line delimiters, and each column in the row is defined by the start and end positions. For example: 10headoffice160corporatenewyork 15newengland50easternboston 20midatlantic10easternwashington 38southatlantic30easternatlanta 42greatlakes100midwestchicago 51plains140midwestdallas 66pacific270westernsanfrancisco 84mountain290westerndenver 2. de

the main function of the virus, you can only separate it.What we should focus on is this lnk file named BMP 1. All evil actions start from this lnk file ......What have you done?BMP 1 is actually very simple, just a shortcut. There is only one problem to be solved. There is no exe file in the whole virus, and the dll file cannot be run by itself. Therefore, the only function of this shortcut is to call the rundll32 of the system to execute the dll file:C: \ WINDOWS \ system32 \ rundll32.exe log

\ CurrentControlSet \ Control \ Terminal Server \ WinStations \ RDP-Tcp]> 2000.regEcho "PortNumber" = dword: 00000D3D> 2000.reg6. Force restart the Win2000 Win2003 System (automatically restart after the last sentence is executed)@ Echo off cd/d % temp % echo [version]> restart. inf(Set inf = InstallHinfSection DefaultInstall)Echo signature = $ chicago $> restart. infEcho [defainstall install]> restart. infRundll32 setupapi, % inf % 1% temp % \ re