User Manual C/C++ Precompiler SAP DB
Short Description
This user manual describes how to embed SAP DB calls in applications written in the programming language C. It is also possible to embed SAP DB calls in C++ programs, provided that the restrictions described in the following sections are taken into consideration for SQL statements, especially for declare sections.
Website: www.sapdb.org | Filesize: 1110kb
No of Page(s): 182
Content
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The database language SQL is the interface between application programs and the SAP DB database. Database operations are invoked by SQL statements embedded in application programs. By means of special program variables - the so called host variables - values are interchanged between the program and the database. A language-specific SAP DB precompiler checks the syntax and semantics of the embedded SQL statements and transforms them into calls of procedures of the SAP DB runtime system. The compiler of the programming language used translates the source program generated by the precompiler into machine code.
This manual requires basic knowledge of the elementary SQL statements. All the other possible SQL statements are described in the Reference Manual: SAP DB (7.2), and the meanings of the return codes are described in the Manual Messages: SAP DB.
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