Mapping from types used in SQL queries | ||
---|---|---|
MySQL type | Trinity type | Example code |
bigint(20) | int64 | int64 val = fields[n].GetInt64(); |
unsigned bigint(20) | uint64 | uint64 val = fields[n].GetUInt64(); |
int(11) | int32 | int32 val = fields[n].GetInt32(); |
unsigned int(10) | uint32 | uint32 val = fields[n].GetUInt32(); |
mediumint(8) | int32 | int32 val = fields[n].GetInt32(); |
unsigned mediumint(8) | uint32 | uint32 val = fields[n].GetUInt32(); |
smallint(6) | int16 | int16 val = fields[n].GetInt16(); |
unsigned smallint(5) | uint16 | uint16 val = fields[n].GetUInt16(); |
tinyint(4) | int8 | int16 val = fields[n].GetInt16(); |
unsigned tinyint(3) | uint8 | uint8 val = fields[n].GetUInt8(); |
float | float | float val = fields[n].GetFloat(); |
unsigned float | ||
double | double | double val = fields[n].GetDouble(); |
unsigned double | ||
text | string (std::string) or cstring (char const*) |
|
longtext | ||
tinytext | ||
char(k) | ||
varchar(k) | ||
blob | ||
COUNT(x) | uint64 | uint64 count = fields[n].GetUInt64(); |
MAX(x) | uint32 or int32 |
|
MIN(x) | ||
SUM(x) | string (std::string) or cstring (char const*) |
|
UNIX_TIMESTAMP(x) | uint64 | uint64 unix_time = fields[n].GetUInt64(); |
Example
// world database query 0 1 2 3 4 QueryResult result = WorldDatabase.Query("SELECT guid, entry, name, period, ScriptName FROM transports"); do { Field* fields = result->Fetch(); uint32 lowguid = fields[0].GetUInt32(); uint32 entry = fields[1].GetUInt32(); std::string name = fields[2].GetString(); uint32 period = fields[3].GetUInt32(); uint32 scriptId = sObjectMgr->GetScriptId(fields[4].GetCString()); // ... } while (result->NextRow());