Create. Delete, update, get database commands

To create a database:

Const std::string Createimmessageindex =
"CREATE UNIQUE INDEX IF not EXISTS sessionid_idx on immessage (msgId Desc,sessionid);";

Delete Number of bars:

Const std::string DELETEMESSAGEBYSID
+ = "Delete from immessage2 where msgId =?" and SessionID =? ";

Update:
Const std::string UPDATEMESSAGEFILEURLBYSID
= "Update immessage set orifileurl =?" where msgId =? and SessionID =? ";

Priced
Const std::string Clearallchatmessage
= "Delete from Immessage";

Get all information:

Const std::string Calculatemessagechartsize

= "SELECT * from Immessage";

Create. Delete, update, get database commands