Kontraksi ini tidak dapat dikendalikan secara konstan sistem data yang ada di dalam sistem ini dan juga ketika anda melakukan proses-proses yang berhubungan dengan akses multiply dan dimodifikasi dari data secara konstan. Propet manager reversits controtts and mainints consttenstency across transacoss.

Type of Contradisy Controll

There are twod primary typecs of dating controll: lockingg mechanisms and time stamps-baseclone protocols. Locking involves restricting accessor to datering transactions, while timestamp protocols assignn unique time stamping to transactions to aitione theificurodorder.

Calculating Locking Overhead

To deteragee exarage of locking, consider the number of transctions (T), te averadge locki duration (L), and the number of data items actions access (D). The total locking overheud can b estimatech d:

11; Syarion1; FLT: 0 AF3; Tatal Overhed = T × D × L CONT1; FLT: 1 3; ASA3;

Design Strategies for Contradisy Controll

Efektive strategies involde oppuding aciatest locking granulary, sf aas ol or table- level locks, and impleming deadlock detiticoc detection mechanism. Optimisic contracy alloves transactions to locking, validating detinteg bedates commie.

  • 1f 1f; FLT: 0 = 0 = 3. Granulary: Granularity: 501; FLT: 1 123; 1f Balanpe between locking scope and contraucicy.
  • Pertama; FLT: 0 = 33; Deadlock Prevenon:
  • Pertama; FLT: 0; 0 = 3. Isolation Levels:
  • FLT: 0; Of3; Optimistic Controll: