main.c

来自「程序代码使用说明： (1)所有源代码目录下都提供了Makefile（非Qt）」· C语言 代码 · 共 74 行

#include <stdio.h>
#include <sqlite3.h>


static int select_callback(void *NotUsed, int argc, char **argv, char **azColName)
{
    int i;
    for (i=0; i < argc; i ++)
    {
        printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
    }
    printf("\n");
    return 0;
}

int main()
{
    sqlite3 *db;
    char *zErrMsg = 0;
    int rc;

    rc = sqlite3_open("test.db", &db);  // will create a new db if not existing
    if (rc != SQLITE_OK)
    {
        fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
        sqlite3_close(db);
        exit(1);
    }

    char *sql = "create table T1(id integer primary key, name varchar(20))"; 
    rc = sqlite3_exec(db, sql, 0, 0, &zErrMsg);
    if (rc == SQLITE_OK)
    {
        printf("Table T1 created. \n");
    }
    else
    {
        fprintf(stderr, "SQL error: %s\n", zErrMsg);
    }

    sql = "insert into T1 values(101, 'Tom')";
    rc = sqlite3_exec(db, sql, 0, 0, &zErrMsg);
    if (rc == SQLITE_OK)
    {
        printf("One record inserted: (101, 'Tom'). \n");
    }
    else
    {
        fprintf(stderr, "SQL error: %s\n", zErrMsg);
    }

    sql = "insert into T1 values(102, 'Jack')";
    rc = sqlite3_exec(db, sql, 0, 0, &zErrMsg);
    if (rc == SQLITE_OK)
    {
        printf("One record inserted: (102, 'Jack'). \n");
    }
    else
    {
        fprintf(stderr, "SQL error: %s\n", zErrMsg);
    }

    sql = "select id, name from T1";
    rc = sqlite3_exec(db, sql, select_callback, 0, &zErrMsg);
    if (rc != SQLITE_OK)
    {
        fprintf(stderr, "SQL error: %s\n", zErrMsg);
    }
 
    sqlite3_close(db);
    
    return 0;
}