ISO IEC 19075-2:2021 pdf download – Information technology — Guidance for the use of database language SQL — Part 2: Time-related information. 4 Time-related data types, constructs, operators, and predicates 4.1 Context of time-related specifications The requirements for the material discussed in this document shall be as specified in ISO/IEC 9075-1 and ISO/IEC 9075-2. 4.2 Datetime types ISO/IEC 9075-2 defines the time-related data types, constructs, operators, and predicates described in this document. ISO/IEC 9075-2 specifies requirements for the material discussed in this document. There are three datetime types, each of which is made up of different datetime fields. A value...