does we has any documentation to source functions?

[luan122]

Hello, i'm comin' back to ragnarok emulators and since the last time i did something with emulators alot has changed, so i'm trying to use an old atcommand that I made in the past and need to update it to become a plugin, so, in my plugin i'm trying to using somethings like sql commands (sql_query, sql_numrows and etc), sc_start, clif_displaymessage and run_script, can someone help me how I can use those commands in source or point a guide please, thanks!
 
sql commands:

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if ( SQL_ERROR == Sql_Query(mmysql_handle, "SELECT* FROM `login` WHERE `account_id` = '%d'", sd->status.account_id) )
clif_displaymessage(fd, "Erro 101. Notifique a Administração.");
else if ( Sql_NumRows(mmysql_handle) == 0 )
clif_displaymessage(fd, "Conta não encontrada. Notifique a Administração.");
else {
Sql_NextRow(mmysql_handle);
Sql_GetData(mmysql_handle, 0, &data, NULL); diasvip = atoi(data);
}
Sql_FreeResult(mmysql_handle);
 

sc_start:

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sc_start(NULL,&sd->bl,SC_ASSUMPTIO,100,5,360000);
 

run_script:

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nd = npc_name2id("vipquests");
        if( nd == NULL )
            return -1;run_script(nd->u.scr.script, 0, sd->bl.id, fake_nd->bl.id);