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Consider a date field, e.g. "19 September 2004". This can be treated as a single date field (e.g. birthdate), or three fields, namely, day of month, month and year. A record is a collection of related fields. An Employee record may contain a name field(s), address fields, birthdate field and so on. A file is a collection of related records. If ...
A record with fields x, y, and z would thus belong to the type of records with fields x and y, as would a record with fields x, y, and r. The rationale is that passing an ( x , y , z ) record to a function that expects an ( x , y ) record as argument should work, since that function will find all the fields it requires within the record.
World records in athletics are ratified by World Athletics. Athletics records comprise the best performances in the sports of track and field, road running and racewalking. Records are kept for all events contested at the Olympic Games and some others. Unofficial records for some other events are kept by track and field statisticians.
Fields may be stored in a random access file. [7] A file may be written to or read from in an arbitrary order. To accomplish the arbitrary access, the operating system provides a method to quickly seek around the file. [8] Once the disk head is positioned at the beginning of a record, each file field can be read into its corresponding memory field.
The data are stored as records which is a collection of one or more fields. Each field contains a single value, and the collection of fields in a record defines its type. One type of field is the link, which connects a given record to associated records. Using links, records link to other records, and to other records, forming a tree.
The terms record and field come from the more practical field of database usage and traditional DBMS system usage (This was linked into business like terms used in manual databases e.g. filing cabinet storage with records for each customer). The terms row and column come from the more theoretical study of relational theory.
Most records are subject to ratification by the governing body for that record. On the world level, that is World Athletics.Each body has their own procedure for ratifying the records: for example, USA Track & Field (USATF), the governing body for the United States, only ratifies records once a year at their annual meeting at the beginning of December.
Relational databases are traditionally composed of tables with fixed-size fields and records. Object databases comprise variable-sized blobs, possibly serializable or incorporating a mime-type. The fundamental similarities between Relational and Object databases are the start and the commit or rollback.