access sql database with javascript

Ngày tải lên: 25/01/2014, 05:20

... Internet Explorer allow JavaScript code to interact with Java applets and Java applets to interact with JavaScript. Netscape's LiveConnect technology also allows JavaScript programs to instantiate ... between JavaScript types and Java types. This is because JavaScript- to -JavaScript type conversions can occur before the JavaScript- to-Java conversion takes place. For example, if you pass a JavaScript ... control Java from JavaScript problem: how to control JavaScript from Java code. T primarily through the Java netscape .javascript. JSObject class, which represents a JavaScript object within a Java...

Ngày tải lên: 05/10/2013, 13:20

... FROM Engineers SQL Server Overview SQL Server Overview What Can SQL do? What Can SQL do?  Execute queries against a database  Retrieve data from a database  Insert records in a database  Updata ... database  Updata records in a database  Delete records in a database  Create new databases  Create new tables in database  Create stored procedures in a database  Create views in a database  Set permissions ... it's possible to create a database using a simple form of CREATE DATABASE: CREATE DATABASE < ;Database Name> ã Other default values apply to the new database and its files. If the LOG...

Ngày tải lên: 28/10/2013, 03:15

... object named sqlConnection1 and a SqlDataAdapter object named sqlDataAdapter1, as shown in Figure 6.10 . Figure 6.10: Form with SqlConnection and SqlDataAdapter objects 4. Click your sqlConnection1 ... a SqlConnection object and a SqlDataAdapter object to your form. Note You use a SqlConnection object to connect to a SQL Server database, and a SqlDataAdapter object to move rows between SQL ... Cntl+Alt+S. To add a SqlConnection and SqlDataAdapter object to your form, perform the following steps: 1. Open Server Explorer. 2. Open the connection to your SQL Server Northwind database (or create...

Ngày tải lên: 07/11/2013, 10:15

... forms of SQL, having much to do with why SQL was invented in the first place. In short, SQL database access has evolved with data modeling techniques, Oracle Database, and other databases. SQL is ... New Features of Oracle SQL This chapter covers new Oracle SQL and PL /SQL features for both Oracle Database 10 g and Oracle Database 9 i . Chapter 3. Oracle Database Architecture ... Oracle SQL? Like many other relational database products, Oracle SQL is a proprietary and exclusive form of SQL written for Oracle Database. ANSI standards are generally adhered to. Most database...

Ngày tải lên: 24/12/2013, 12:17

... Oracle Database 10 g . 2.1 New Features in Oracle Database 10 g Oracle Database 10 g contains the following SQL and PL /SQL features. 2.1.1 Oracle SQL Improvements in Oracle Database ... introduction to PL /SQL programming is covered in Chapter 24.  Everything possible in Oracle SQL with respect to SQL coding can now be coded and executed from within PL /SQL. PL /SQL is now fully ... Oracle SQL In this chapter:  What are the new features of Oracle SQL in Oracle Database 10 g ?  What were the new features of Oracle SQL in Oracle Database 9 i ?  What PL/SQL...

Ngày tải lên: 24/12/2013, 12:17

... *. An asterisk (*) represents all column names within a query when used in the SELECT statement. Square brackets mean you can include the items within the square brack- ets or leave them out ... to query the database. We also briefly discuss different types of queries, finally examining specific aspects of queries such as using DIS- TINCT and the DUAL table. So let’s begin with the basics ... things. 4.1 The Basic SELECT Statement SELECT is the beginning of the SQL command for querying (retrieving) data from a database table, view, or object. Objects are similar to tables, but they...

Ngày tải lên: 24/12/2013, 12:17

... have three scripts named A .SQL, B .SQL, and C .SQL in the C:\TEMP directory /tmp on UNIX. The script A .SQL has an SQL* Plus command to run the B .SQL and B .SQL calls C .SQL. You could start the primary ... run by anyone who can access your HTTP Server. The HTTP Server runs iSQL*Plus by accessing the iSQL*Plus Server process that is automatically configured within it. The iSQL*Plus Server is running ... with MUSICCD_ID = 1. An editing session can be initi- ated from within SQL* Plus using the EDIT command. EDIT In the background, SQL* Plus writes a file named AFIEDT.BUF and then opens the file with...

Ngày tải lên: 24/12/2013, 12:17

... Web browser and the server. 8.4.2 iSQL*Plus versus SQL* Plus The main features of iSQL*Plus are similar to the features of SQL* Plus or SQL* Plus Worksheet:  Enter SQL commands in a box and click ... to iSQL*Plus that should help you get started with your own experimentation. Remember to review the help screens provided inside iSQL*Plus for more examples of code and quick reference to SQL ... CONCAT('Oracle',' Database 10g') = 'Oracle Database 10g' 'Oracle'||' Database '||'10g' = 'Oracle Database 10g' 'My name...

Ngày tải lên: 24/12/2013, 12:17

... Used? Subqueries can be used almost anywhere in an SQL statement, in any SQL command where an expression can be placed. Following are listed SQL statement clauses in which a subquery can be placed: ... func- tion, we start with the probability and compute the corresponding value for the cumulative distribution. 11.2.1.4 Ranking Functions  RANK(expression [, expression ]) WITHIN GROUP (ORDER ... values.  PERCENT_RANK(expression [, expression ]) WITHIN GROUP (ORDER BY [, expression ]). A cumulative distribution ranking function. See CUME_DIST above.  DENSE_RANK(expression [, expression ]) WITHIN GROUP (ORDER BY...

Ngày tải lên: 24/12/2013, 12:17

... (object level), and control level (ALTER DATABASE) . 4. Exit SQL* Plus. 5. Lose your database connection because of system failure. 6. Execute any DML command in an SQL* Plus session where the environment ... MAXVALUE ORDER BY CONTINENT_ID; Oracle Database 10g now allows both FLASHBACK DATABASE and FLASHBACK TABLE operations, as in the following syntax: FLASHBACK [ STANDBY ] DATABASE [ database ] TO { SCN | TIMESTAMP ... more SQL com- mands that change data. A transaction begins when you execute an SQL command, changing something in the database. As you make further changes to table data, you execute additional SQL...

Ngày tải lên: 24/12/2013, 12:17

... to do with actually “doing things” to XML structures, with Oracle SQL commands. We want to know the “what” and not the “how.” In other words, what can we do with XML documents in Oracle SQL, not ... chapter deals with making changes to the database using DML commands to add, change, and remove data. We begin with the INSERT command. Figure 15.5 Two Updates to the Same Row with a SAVEPOINT Label ... book. Because the SQL/ XML functions are the accepted standard, we shall examine these functions in detail. 17.2.1.2.1 The SQL/ XML Standard As already stated, SQL/ XML adheres to SQL/ XML INCITS...

Ngày tải lên: 24/12/2013, 12:17

... be changed in an Oracle database. 17.2.2 XML and the Database In this section we examine XML and Oracle Database in three ways: (1) creating new XML documents in the database; (2) retrieving ... Oracle software. This chapter is merely included to present the usefulness of XML with respect to both Oracle Database and relational databases in general. The next chapter will begin coverage of Data Definition ... in both SQL and PL /SQL scripts and can be attached to schema objects. 18.6.1 Adding Comments to Schema Objects See the syntax diagram in Figure 18.25 for details on adding comments to database...

Ngày tải lên: 24/12/2013, 12:17

... Constraints Java is a better option. Database modeling is an even deeper layer than PL/ SQL for a relational database. Therefore, building object structures in a relational database is somewhat counterintuitive ... views include a wide variety of queries. Two common ones are views with joins and views with inline subqueries. 19.3.3.1 Views with Joins Let’s dive right in by creating a complex view that ... with Joins Modifying data through a view that joins two tables is tricky. In addition to all the rules that Oracle Database 10g imposes on simple views, there are still more rules for views with...

Ngày tải lên: 21/01/2014, 18:20

... database when you include a database link in the definition of the synonym. A database link is a direct gateway from one database to another database.  Simplified SQL code . Code is simplified ... monitoring and administering the database. SYSTEM can do many of the same tasks as the SYS user, without the danger of accidentally damaging internal tables or bouncing the database. Log in as the SYSTEM ... chapter).  Monitoring database activity and performance.  Adjusting database parameters (usually to improve performance).  Adding more space to the database.  Feature-Related...

Ngày tải lên: 21/01/2014, 18:20

... section looks at dynamic SQL. Dynamic SQL is SQL or PL/ SQL code generated on the fly, usually generically from within an applica- tion or some other calling process. 24.6 Dynamic SQL Dynamic or generic ... PL /SQL 549 Chapter 24 Now let’s describe some small facts about changing data from within PL /SQL blocks. 24.5 Changing Data in PL /SQL Not only can data in tables be changed from within PL /SQL ... disable PL /SQL compilation warnings. The PLSQL_WARNINGS database configuration parameter performs the same function.  UTL_COMPRESS. Allows data compression.  UTL_MAIL. Simplifies e-mail from within PL/SQL...

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 21/01/2014, 18:20

Ngày tải lên: 18/02/2014, 01:20