In The Sequential File Organization, Why Is An Overflow Block Used Ev

1.	In The Sequential File Organization, Why Is An Overflow Block Used Even If There Is, At The Moment, Only One Overflow Record?
Answer» An overflow BLOCK is used in sequential file organization because a block is the smallest SPACE which can be READ from a disk. Therefore, using any smaller region would not be useful from a performance STANDPOINT. The space SAVED by allocating disk storage in record units would be overshadowed by the performance cost of allowing blocks to contain records of multiple files. An overflow block is used in sequential file organization because a block is the smallest space which can be read from a disk. Therefore, using any smaller region would not be useful from a performance standpoint. The space saved by allocating disk storage in record units would be overshadowed by the performance cost of allowing blocks to contain records of multiple files.

In The Sequential File Organization, Why Is An Overflow Block Used Even If There Is, At The Moment, Only One Overflow Record?

Answer»

An overflow BLOCK is used in sequential file organization because a block is the smallest SPACE which can be READ from a disk. Therefore, using any smaller region would not be useful from a performance STANDPOINT. The space SAVED by allocating disk storage in record units would be overshadowed by the performance cost of allowing blocks to contain records of multiple files.

An overflow block is used in sequential file organization because a block is the smallest space which can be read from a disk. Therefore, using any smaller region would not be useful from a performance standpoint. The space saved by allocating disk storage in record units would be overshadowed by the performance cost of allowing blocks to contain records of multiple files.

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