Fixed-Length Records Deletion of record i:alternatives: move recordsi+1,...,n to i,...,n-1 move recordn to i do not move records.but link all free records on a free list Record 3 deleted record 0 10101 Srinivasan Comp.Sci. 65000 record 1 12121 Wu Finance 90000 record 2 15151 Mozart Music 40000 record 4 32343 El Said History 60000 record 5 33456 Gold Physics 87000 record 6 45565 Katz Comp.Sci. 75000 record 7 58583 Califieri History 62000 record 8 76543 Singh Finance 80000 record 9 76766 Crick Biology 72000 record 10 83821 Brandt Comp.Sci. 92000 record 11 98345 Kim Elec.Eng. 80000 Database System Concepts-7th Edition 13.4 @Silberschatz,Korth and SudarshanDatabase System Concepts - 7 13.4 ©Silberschatz, Korth and Sudarshan th Edition Fixed-Length Records ▪ Deletion of record i: alternatives: • move records i + 1, . . ., n to i, . . . , n – 1 • move record n to i • do not move records, but link all free records on a free list Record 3 deleted