ansi sql tutorial

the modified script into the SQL executor. such as,Log in and click, create a new query-copy the SQL script into the inside-click to execute, the following will be prompted, 1 lines to receive the impact even if successful. of course, if you don't want to be so tedious, you can do it with your feet. Write the following code into Notepad and save it as a "game Id.bat". @ECHO offosql-e-n-i "game list.

SQL Join left federated Associated Query instance tutorial Table A: Results and data StudentID WorkID Store1 1 981 2 952 1 902 3 80 Table B: Results and dataWorkID Workname1 Zuoye2 www.111cn.net3 Wenti We're going to use join left federated query results for the following StudentID WorkID Workname Store1 1 Zuoye 981 2 Shiti 95OrStudentID WorkID Workname Store2 1 Zuoye 982 3 Wenti 80*/ $

=drivermanager.getconnection (URL); System.out.println ("End."); //Create and execute an SQL statement that returns some data.String SQL = "SELECT * FROM TestTable1"; stmt=con.createstatement (); RS=stmt.executequery (SQL); //iterate through the data in the result set and display it. while(Rs.next ()) {System.out.println (rs.getstring (1) + "" + rs.ge

PL/SQL is slightly more complex to install under the Windows x64 bit operating system, providing PL/SQL with Oracle Instant client (which is much smaller than Oracle client files) for Oracle libraries to use this handy tool. Can save installation time for users) connection database configuration tutorial One, please take away the necessary pots.1. Download Oracle

next step:17. Click Add Current User.18. Select Install native mode default configuration.19, do not choose these two, direct next ...20. Direct Next Step ...21, installation information, into the installation .....22, the front configured n long, now formally into the installation ...Finally, when the installation is complete, the SQL Server 2008 executable appears in the Start menu.Specific view: Previous posthttp://blog.csdn.net/bugdemo/article/de

PRIMARY KEY,Order_date datetime,Customer_sid integer REFERENCES CUSTOMER (SID),Amount double);The following example specifies a foreign key by changing the table schema. This assumes that the ORDERS table has been built and the foreign key has not been specified:MySQL:ALTER TABLE ORDERSADD FOREIGN KEY (customer_sid) REFERENCES Customer (SID);Oracle:ALTER TABLE ORDERSADD (CONSTRAINT fk_orders1) FOREIGN KEY (customer_sid) REFERENCES Customer (SID);SQL

have turnover (sales). To achieve this, we use the following SQL statement:SELECT txn_date from Store_informationUNIONSELECT txn_date from Internet_sales;Results: Txn_date jan-05-1999 jan-07-1999 jan-08-1999 jan-10-1999 jan-11-1999 jan-12-1999 One thing to note is that if we use SELECT DISTINCT txn_date in any

),Amount double); SQL Server: CREATE TABLE ORDERS(order_id integer PRIMARY KEY,Order_date datetime,Customer_sid integer REFERENCES CUSTOMER (SID),Amount double); The following example specifies a foreign key by changing the table schema. Here if the ORDERS table is already built. And the foreign key has not been specified: MySQL: ALTER TABLE ORDERSADD FOREIGN KEY (customer_sid) REFERENCES Customer (SID); Oracle: ALTER TABLE ORDERSADD (CONSTRAINT fk_or

Account Name drop-down menu, select NT Authority\System, the password is empty, click OK, go to the next step. 16. Select the blending mode, set the administrator password, and specify the administrator entry point to add the current user. Then the next step: 17. Click Add Current User. 18. Select Install native mode default configuration. 19, do not choose these two, direct next ... 20. Direct Next Step ... 21, installation information, into the installation ..... 22,

click Next . Click next ; Click next ; Click next ; SQL Server Agent account name selection: NT aouthority/system SQL Server Database engine account name selection: NT NETWORK SERVICE SQL serveranalysis Services account name selection: NT NETWORK SERVICE SQL serverreporting Services account name selection: NT NE

behind the objects they are replacing, and they are separated by a blank space. We continue to use the store_information form to do an example:store_information Form Store_name Sales Txn_date Los Angeles 1500 05-jan-1999 San Diego 250 07-jan-1999 Los Angeles 300 08-jan-1999 Boston 700 08-jan-1999 We use the same example as the

is alsoDate。 This may be convenient or confusing-you choose to do so.PostgreSQL supports the standard SQL type int,smallint,real,double precision,char (N ),varchar (N),date,time,timestamp , and Intervalalso supports other types of common functionality and rich geometry types. any number of user-defined data types can be customized in PostgreSQL. Thus the type name is not a syntax keyword, except for the special exceptions that

The purpose of the UNION all directive is to merge the results of the two SQL statements together. the union All and union differ in that union all lists each qualifying material, regardless of whether the data value is repeated or not.The syntax for UNION All is as follows:[SQL Statement 1]UNION All[SQL statement 2];We use the same example as the previous page