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PostgreSQL 8.3.23 Documentation
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Chapter 32. ECPG - Embedded SQL in C

Table of Contents

32.1. The Concept

32.2. Connecting to the Database Server

32.3. Closing a Connection

32.4. Running SQL Commands

32.5. Choosing a Connection

32.6. Using Host Variables

32.6.1. Overview
32.6.2. Declare Sections
32.6.3. Different types of host variables
32.6.4. SELECT INTO and FETCH INTO
32.6.5. Indicators

32.7. Dynamic SQL

32.8. pgtypes library

32.8.1. The numeric type
32.8.2. The date type
32.8.3. The timestamp type
32.8.4. The interval type
32.8.5. The decimal type
32.8.6. errno values of pgtypeslib
32.8.7. Special constants of pgtypeslib

32.9. Informix compatibility mode

32.9.1. Additional embedded SQL statements
32.9.2. Additional functions
32.9.3. Additional constants

32.10. Using SQL Descriptor Areas

32.11. Error Handling

32.11.1. Setting Callbacks
32.11.2. sqlca
32.11.3. SQLSTATE vs SQLCODE

32.12. Preprocessor directives

32.12.1. Including files
32.12.2. The #define and #undef directives
32.12.3. ifdef, ifndef, else, elif and endif directives

32.13. Processing Embedded SQL Programs

32.14. Library Functions

32.15. Internals

This chapter describes the embedded SQL package for PostgreSQL. It was written by Linus Tolke (<[email protected]>) and Michael Meskes (<[email protected]>). Originally it was written to work with C. It also works with C++, but it does not recognize all C++ constructs yet.

This documentation is quite incomplete. But since this interface is standardized, additional information can be found in many resources about SQL.

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