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Oracle 11g Precompilers are part of Oracle Database 11g Release 1 Client (11.1.0.6.0) Media. Normally Oracle Precompilers can be installed from Oracle Client by choosing custom install. As a part of Oracle Precompiler installation - you should have Pro*C, Pro*COBOL, Pro*FORTRAN, Pro*PL/1 (pli) etc. Precompiler libraries are integrated.

What is Pro*COBOL? To access an Oracle database, you use a high-level query language called Structured Query Language (SQL). You often use SQL through an interactive interface, such as SQL*Plus. Pro*COBOL is a programming tool that enables you to embed SQL statements in a COBOL program. The Pro*COBOL precompiler converts the SQL statements in the COBOL program into standard Oracle run-time library calls. The generated output file can then be compiled, linked, and run in the usual manner. Use the Pro*COBOL precompiler when rapid development and compatibility with other systems are your priorities.

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Advantages of the Pro*COBOL Precompiler The Pro*COBOL Precompiler lets you pack the power and flexibility of SQL into your application programs. You can embed SQL statements in COBOL. A convenient, easy to use interface lets your application access Oracle directly. Unlike many application development tools, Pro*COBOL lets you create highly customized applications. For example, you can create user interfaces that incorporate the latest windowing and mouse technology.

Install pro cobol oracle 11g tutorial free11g

You can also create applications that run in the background without the need for user interaction. Download driver notebook cce information. Furthermore, with Pro*COBOL you can fine-tune your applications. It enables close monitoring of resource usage, SQL statement execution, and various run-time indicators. With this information, you can adjust program parameters for maximum performance.

The SQL Language If you want to access and manipulate Oracle data, you need SQL. Whether you use SQL interactively or embedded in an application program depends on the job at hand. If the job requires the procedural processing power of COBOL, or must be done on a regular basis, use embedded SQL. SQL has become the database language of choice because it is flexible, powerful, and easy to learn. Being non-procedural, it lets you specify what you want done without specifying how to do it. A few English-like statements make it easy to manipulate Oracle data one row or many rows at a time. You can execute any SQL (not SQL*Plus) statement from an application program.

For example, you can: • CREATE, ALTER, and DROP database tables dynamically. • SELECT, INSERT, UPDATE, and DELETE rows of data. • COMMIT or ROLLBACK transactions.

Before embedding SQL statements in an application program, you can test them interactively using SQL*Plus. Usually, only minor changes are required to switch from interactive to embedded SQL.

The PL/SQL Language An extension to SQL, PL/SQL is a transaction processing language that supports procedural constructs, variable declarations, and robust error handling. Within the same PL/SQL block, you can use SQL and all the PL/SQL extensions. The main advantage of embedded PL/SQL is better performance. Unlike SQL, PL/SQL enables you to group SQL statements logically and send them to Oracle in a block rather than one by one. This reduces network traffic and processing overhead. For more information about PL/SQL including how to embed it in an application program, see.

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