PostgreSQL - Jak To Zrobić w Linux-ie: "C", "C++", ESQL/C language Interfaces and Bitwise Operators for PostgreSQL
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18. "C", "C++", ESQL/C language Interfaces and Bitwise Operators for PostgreSQL
18.1 "C" interface
It is included in distribution and is called 'libpq'. Similar to Oracle OCI, Sybase DB-lib, Informix CLI libraries.
18.2 "C++" interface
It is included in distribution and is called 'libpq++'.
18.3 ESQL/C
ESQL/C 'Embedded C Pre-compiler' for PostgreSQL ESQL/C is like Oracle Pro*C, Informix ESQL/C.
The PostgreSQL ESQL/C is an SQL application-programming interface (API) enables the C programmer to create custom applications with database-management capabilities. The PostgreSQL ESQL/C allows you to use a third-generation language with which you are familiar and still take advantage of the Structured Query Language (SQL).
ESQL/C consists of the following pieces of software:
The ESQL/C libraries of C functions provide access to the database server.
The ESQL/C header files provide definitions for the data structures, constants, and macros useful to the ESQL/C program.
The ESQL/C preprocessor, is a source-code preprocessor that converts a C file containing SQL statements into an executable file.
It is at
ESQL/C for PostgreSQL is already included in the distribution.
Main site
ftp://ftp.lysator.liu.se/pub/linus
Email :
linus@epact.se
18.4 BitWise Operators for PostgreSQL
Bitwise operators was written by Nicolas Moldavsky
nico@overnet.com.ar
"C" functions that implement bitwise operators (AND, OR,
XOR, bit complement) on pgsql. Get them by anonymous FTP from
ftp://ftp.overnet.com.ar/pub/utils/linux/bitpgsql.tgz
Makefile for Linux is included.
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