Method bindNull

src/sqlite3_utils.hpp:91–94

    int execute() { return sqlite3_step(hStmt); }

    void bindNull() {
        sqlite3_bind_null(hStmt, iBindIdx);
        iBindIdx++;
    }

    void bindText(const char *txt) {
        sqlite3_bind_text(hStmt, iBindIdx, txt, -1, nullptr);