如何检查sqlite3 c ++ API中是否存在表？

#include <iostream>
#include <sqlite3.h>

int main() {
    sqlite3* db;
    int rc = sqlite3_open(":memory:", &db); // 打开内存数据库，也可以指定文件路径打开磁盘数据库

    if (rc != SQLITE_OK) {
        std::cerr << "Cannot open database: " << sqlite3_errmsg(db) << std::endl;
        return rc;
    }

    const char* sql = "CREATE TABLE IF NOT EXISTS my_table (id INT, name TEXT);";
    rc = sqlite3_exec(db, sql, nullptr, nullptr, nullptr); // 创建表

    if (rc != SQLITE_OK) {
        std::cerr << "Cannot create table: " << sqlite3_errmsg(db) << std::endl;
        sqlite3_close(db);
        return rc;
    }

    const char* checkSql = "SELECT name FROM sqlite_master WHERE type='table' AND name='my_table';";
    int callback(void*, int, char**, char**) {
        return 0;
    }

    rc = sqlite3_exec(db, checkSql, callback, nullptr, nullptr); // 执行查询语句

    if (rc == SQLITE_OK) {
        std::cout << "Table exists." << std::endl;
    } else {
        std::cout << "Table does not exist." << std::endl;
    }

    sqlite3_close(db);
    return 0;
}