Skip to content

Instantly share code, notes, and snippets.

@Ratstail91
Last active December 14, 2015 13:39
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save Ratstail91/5095121 to your computer and use it in GitHub Desktop.
Save Ratstail91/5095121 to your computer and use it in GitHub Desktop.
Me, playing around with SQLite3.
#include "sqlite3.h"
#include <iostream>
#include <cstring>
using namespace std;
int charcount(char* str, const char c) {
int count = 0;
while(*str) {
if (*str == c) {
count++;
}
str++;
}
return count;
}
int execute(sqlite3* db, const char* command) {
sqlite3_stmt *stmt;
while(charcount((char*)command, ';') > 0) {
sqlite3_prepare_v2(db, command, strlen(command), &stmt, &command);
switch(sqlite3_step(stmt)) {
case SQLITE_DONE:
break;
case SQLITE_ROW:
//output the row's data
for (int i = 0; i < sqlite3_column_count(stmt); i++) {
switch(sqlite3_column_type(stmt, i)) {
case SQLITE_INTEGER:
cout << sqlite3_column_int(stmt, i);
break;
case SQLITE_FLOAT:
cout << sqlite3_column_double(stmt, i);
break;
case SQLITE_TEXT:
cout << sqlite3_column_text(stmt, i);
break;
case SQLITE_BLOB:
cout << "[blob]";
break;
case SQLITE_NULL:
cout << "[null]";
break;
}
}
break;
case SQLITE_ERROR:
sqlite3_finalize(stmt);
return 1;
default:
sqlite3_finalize(stmt);
return 1;
}
sqlite3_reset(stmt);
}
sqlite3_finalize(stmt);
return 0;
}
int main(int argc, char* argv[]) {
sqlite3 *db;
if (sqlite3_open("file.db", &db) != SQLITE_OK) {
cerr << "Failed to open the database" << endl;
sqlite3_close(db);
return 1;
}
const char *command = "\
CREATE TABLE IF NOT EXISTS user ('name' TEXT,'age' NUMERIC,'cats' NUMERIC,'programmer' TEXT);\
INSERT INTO user VALUES('Kayne', 21, 5, 'true');\
INSERT INTO user VALUES('Chris', 22, 1, 'true');\
INSERT INTO user VALUES('Logan', 21, 0, 'true');\
INSERT INTO user VALUES('Jordan', 17, 5, 'false');\
";
execute(db, command);
command = "SELECT * FROM user";
execute(db, command);
sqlite3_close(db);
return 0;
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment