MySQL C ++连接器setBigInt

Question

So a PreparedStatement::setBigInt() takes a SQLString as the value parameter? Is there no value large enough in C++ to hold what a BigInt can hold? What if I'm using an unsigned long long in C++? What do I need to do to store this unsigned long long in a BigInt field?

Answer 1

将setUInt64与uint64_t一起使用：

void sql::PreparedStatement::setUInt64(unsigned int parameterIndex, uint64_t value);

Answer 2

A bigint is a 64-bit integer, so why can't use use an unsigned long long for an UNSIGNED BIGINT column?

It might depend on what adapter you're using. Do you have a link to the reference documentation?