Breast cancer may cause swollen axillary lymph nodes since the lymph vessels of the breast drain into the lymph nodes of the armpit. These nodes become enlarged when cancer cells spread beyond the breast tissue.
Relational database. (Redirected from Database constraints) A relational database is a digital database whose organization is based on the relational model of data, as proposed by E. F. Codd in 1970. The various software systems used to maintain relational databases are known as a relational database management system (RDBMS).
SQL limits. The following tables describe certain SQL and database limits imposed by the DB2Â® for i database manager. Note: System storage limits may preclude the limits specified here. For example, see Maximum row sizes. A limit of storage means that the limit is dependent on the amount of storage available.