| Mapping from types used in SQL queries | |||
|---|---|---|---|
MySQL type | Trinity type | Example code | Variable operators |
| 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(); | %u |
| unsigned int(10) | uint32 | uint32 val = fields[n].GetUInt32(); | %u |
| mediumint(8) | int32 | int32 val = fields[n].GetInt32(); | %u |
| unsigned mediumint(8) | uint32 | uint32 val = fields[n].GetUInt32(); | %u |
| 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*) |
| %s |
| longtext | %s | ||
| tinytext | %s | ||
| char(k) | %s | ||
| varchar(k) | %s | ||
| blob | %s | ||
| COUNT(x) | uint64 | uint64 count = fields[n].GetUInt64(); | %UI64FMT* |
| MAX(x) | uint32 or int32 |
| %u |
| MIN(x) | %u | ||
| SUM(x) | string (std::string) or cstring (char const*) |
| %s
%s |
| UNIX_TIMESTAMP(x) | uint64 | uint64 unix_time = fields[n].GetUInt64(); |
|
1* %UI64FMT does not work with trinity_string
| Bloque de código | ||||||
|---|---|---|---|---|---|---|
| ||||||
// 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()); |