Even when you have determined the maximum number of parameters (there may be unused parameter numbers), you still need to determine which values to bind to which parameter and which of the bind routines to call. A prepared statment is an SQL Program that implements a query plan against a specific schema. It may become invalid when the schema is changed - which is why SQLite also stores the text of the query and automatically re-prepares it after a schema change (if the V2 version of prepare() is called). AFAIK none of the previous posters who asked about saving prepared statements for later use has ever reported back that whatever they attempted actually worked.