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/*-------------------------------------------------------------------------
*
* pgdatabase.h
*
*
* DESCRIPTION
* Postgres Database Class:
* Query Postgres backend to obtain query results
*
* NOTES
* Currently under construction.
*
* Copyright (c) 1994, Regents of the University of California
*
*
* $Id: pgdatabase.h,v 1.2 1999/05/23 01:04:01 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PGDATABASE_H
#define PGDATABASE_H
#include "pgconnection.h"
// ****************************************************************
//
// PgDatabase - a class for accessing databases
//
// ****************************************************************
// This is the basic database access class. Its interface should
// be used only after a query has been sent to the backend and
// results are being received.
class PgDatabase : public PgConnection {
public:
PgDatabase(const char* conninfo) : PgConnection(conninfo) {} // use reasonable defaults
~PgDatabase() {} ; // close connection and clean up
// query result access
int Tuples();
int Fields();
const char* FieldName(int field_num);
int FieldNum(const char* field_name);
Oid FieldType(int field_num);
Oid FieldType(const char* field_name);
short FieldSize(int field_num);
short FieldSize(const char* field_name);
const char* GetValue(int tup_num, int field_num);
const char* GetValue(int tup_num, const char* field_name);
int GetLength(int tup_num, int field_num);
int GetLength(int tup_num, const char* field_name);
void DisplayTuples(FILE *out = 0, int fillAlign = 1,
const char* fieldSep = "|",int printHeader = 1, int quiet = 0) ;
void PrintTuples(FILE *out = 0, int printAttName = 1,
int terseOutput = 0, int width = 0) ;
// copy command related access
int GetLine(char* string, int length);
void PutLine(const char* string);
const char* OidStatus();
int EndCopy();
protected:
PgDatabase() : PgConnection() {} // Do not connect
};
#endif // PGDATABASE_H
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