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/*
* sqlite3xx - sqlite3 C++ layer, following the ideas of libpqxx
* Copyright (C) 2009 Andreas Baumann
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions of
* the GNU Lesser General Public License, as published by the Free Software
* Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <sqlite3.h>
#if !defined( _WIN32 )
#include <unistd.h>
#endif
#define UNUSED( x ) if( 0 && (x) ) { }
void DirectExec( sqlite3* db, const char *sql );
void DirectExecNoResult( sqlite3* db, const char *sql );
static int callback( void *NotUsed, int argc, char **argv, char **azColName ){
int i;
UNUSED( NotUsed );
for( i = 0; i < argc; i++ ) {
printf( "%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL" );
}
return 0;
}
void DirectExec( sqlite3* db, const char *sql ) {
int rc;
char *errmsg = NULL;
rc = sqlite3_exec( db, sql, callback, 0, &errmsg );
if( rc != SQLITE_OK ) {
fprintf( stderr, "SQL error in '%s': %s\n", sql, errmsg );
sqlite3_free( errmsg );
(void)sqlite3_close( db );
exit( 1 );
}
}
void DirectExecNoResult( sqlite3* db, const char *sql ) {
int rc;
char *errmsg = NULL;
rc = sqlite3_exec( db, sql, NULL, 0, &errmsg );
if( rc != SQLITE_OK ) {
fprintf( stderr, "SQL error in '%s': %s\n", sql, errmsg );
sqlite3_free( errmsg );
(void)sqlite3_close( db );
exit( 1 );
}
}
int main( void ) {
sqlite3* db;
int rc;
sqlite3_stmt *stmt;
const char *ptr;
int i;
(void)unlink( "testc.db" );
rc = sqlite3_open( "testc.db", &db );
if( rc != SQLITE_OK ) {
fprintf( stderr, "Can't open database: %s\n",
sqlite3_errmsg( db ) );
(void)sqlite3_close( db );
exit( 1 );
}
#if SQLITE_VERSION_NUMBER >= 3005000
printf( "thread-safe: %d\n", sqlite3_threadsafe( ) );
#else
printf( "thread-safe: no\n" );
#endif
DirectExecNoResult( db, "create table a( b integer, s text )" );
DirectExecNoResult( db, "insert into a(b,s) values (8,'bla')" );
DirectExecNoResult( db, "insert into a(b,s) values (4,'blu')" );
DirectExecNoResult( db, "insert into a(b,s) values (1,'bli')" );
printf( "number of rows changed: %d (MUST: 1)\n", sqlite3_changes( db ) );
DirectExecNoResult( db, "delete from a where b=47" );
printf( "number of rows changed: %d (MUST: 0)\n", sqlite3_changes( db ) );
/* with callbacks */
DirectExec( db, "select * from a" );
/* prepared statement */
#if SQLITE_VERSION_NUMBER >= 3005000
rc = sqlite3_prepare_v2( db, "select * from a where b>=$1 and b<=$2",
-1, &stmt, &ptr );
#else
rc = sqlite3_prepare( db, "select * from a where b>=$1 and b<=$2",
-1, &stmt, &ptr );
#endif
if( rc != SQLITE_OK ) {
fprintf( stderr, "Unable to prepare statement: %s\n", sqlite3_errmsg( db ) );
(void)sqlite3_close( db );
exit( 1 );
}
rc = sqlite3_bind_int( stmt, 1, 3 );
if( rc != SQLITE_OK ) {
fprintf( stderr, "Unable to bind first parameter: %s\n", sqlite3_errmsg( db ) );
(void)sqlite3_finalize( stmt );
(void)sqlite3_close( db );
exit( 1 );
}
rc = sqlite3_bind_int( stmt, 2, 4 );
if( rc != SQLITE_OK ) {
fprintf( stderr, "Unable to bind second parameter: %s\n", sqlite3_errmsg( db ) );
(void)sqlite3_finalize( stmt );
(void)sqlite3_close( db );
exit( 1 );
}
printf( "number of bind parameters: %d (MUST: 2)\n", sqlite3_bind_parameter_count( stmt ) );
rc = sqlite3_step( stmt );
while( rc == SQLITE_ROW ) {
switch( rc ) {
case SQLITE_ROW:
printf( "nof columns: %d\n", sqlite3_data_count( stmt ) );
for( i = 0; i < sqlite3_data_count( stmt ); i++ ) {
const char *colname = sqlite3_column_name( stmt, i );
int data_type = sqlite3_column_type( stmt, i );
switch( data_type ) {
case SQLITE_INTEGER: {
int value = sqlite3_column_int( stmt, i );
printf( "%s(%d) = %d\n", colname, data_type, value );
}
break;
case SQLITE_TEXT: {
const unsigned char *value = sqlite3_column_text( stmt, i );
printf( "%s(%d) = %s\n", colname, data_type, value );
}
break;
}
}
break;
default:
fprintf( stderr, "Unable to step through statement: %s\n", sqlite3_errmsg( db ) );
(void)sqlite3_finalize( stmt );
(void)sqlite3_close( db );
exit( 1 );
}
rc = sqlite3_step( stmt );
}
/* finalize prepared statement */
rc = sqlite3_finalize( stmt );
if( rc != SQLITE_OK ) {
fprintf( stderr, "Unable to finalize statement: %s\n", sqlite3_errmsg( db ) );
(void)sqlite3_close( db );
exit( 1 );
}
rc = sqlite3_close( db );
if( rc != SQLITE_OK ) {
fprintf( stderr, "Can't close database: %s\n",
sqlite3_errmsg( db ) );
exit( 1 );
}
exit( 0 );
}
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