CHAR Stores single-byte or multibyte text strings of fixed length (up to 32,767 bytes); supports code-set order in collation of text data.

From the engineering construction the characteristics set out, to curved face clear water concrete and space type steel the construction construction proceeds to chooses to order, fixed position.

The existence of the minimal and maximal fixed points for order preserving set-valued operators on semi-ordered sets and semi-ordered topological spaces was analyzed.