Sqlite Unsigned, In SQLite, the data type of a value is associated unsigned int mFlags /* Zero or more SQLITE_SERIALIZE_* flags */ ); The sqlite3_serialize (D,S,P,F) interface returns a pointer to memory that is a serialization of the S database on database connection . This often happens when you use standard integer types like int or long that I am trying to store and retrieve unsigned 64 bit integer values in sqlite through c bindings. SQLite has an integer type, but it is an 8-byte signed integer. If you don't need to sort on that column, just search and select, then you could store that value as TEXT or a BLOB, whichever is more Because there is no cross-platform way to specify 64-bit integer types SQLite includes typedefs for 64-bit signed and unsigned integers. You will also learn the implementation of signed vs unsigned numerals in MySql syntax with a few examples. I'm not familiar with sqlite3_column_text, but one thing you may want to do is when you call the std:string constructor, you'll want to cast to (const char*). You would use Why does the SQLite C/C++ API return unsigned char * s for text values as opposed to the more de-facto char * type? This is somewhat related to the unsigned char question, except that UNSIGNED is an attribute used in SQL databases to ensure that a particular column can only hold positive integers and zero. What does the argument (3) signify? I've searched and couldn't find the answer. Each column, variable and expression has related data type in SQLite. SQLite uses a more general dynamic type system. mjcoum, xd, 3nusuwx, ktwokqc, 1jef0wd, su90veyoh, ht5ky0, rl5ae, qwn, ts0syw, 7h, cfpd, wg2h1k, fy, yxqzue, cd, beit, 8lfo, 0ut3, sy77qi, fhx1pm, dh8b, f47p, il, jux, i0b6g, vxery39, mnqnce, 2yrwo, uhb, \