اسلام میں عدل کی اہمیت

Islam is an institution of justice and moderation. It is a straight path and the Muslim fraternity is the nation which practices moderation and justice. The Islamic system is based on justice. If there are tears for the oppressed then there are swords for the oppressors. Allah do command you to render back your Trusts to those to whom they are due; and when ye judge between man and man, that ye judge with justice: verily how excellent is the teaching which He gives you! For Allah is He Who hears and sees all things." [Quran 4: 58] Allah says in the Qur'an: “Allah commands justice, the doing of good, and liberality to kith and kin, and He forbids all shameful deeds, and injustice and rebellion: He instructs you, that you may receive admonition.” (Surah An-Nahl: 90) Establishing justice is the law of Allah. It is part of the balance which Allah has created. In Surah Ar-Rahman, Allah describes how He has created a balance of justice, and why as we discussed earlier, There are times when people do wrong in this world and get away with it. Sometimes, criminals commit crimes, and no one brings them to account. There are times when wrongdoers commit their evil deeds in the darkness of night, and no one witnesses their crime, other than their Creator. As Allah Himself created the balance of justice as His law in this world, Allah will not allow any injustice to happen, without bringing that person to account. Those matters which are not resolved in this world, Allah will deal with them in the hereafter…on the Day of Judgment. Every one of us was created by Allah, and every one of us will return to Him for final judgment. Allah's creatures cannot exceed the limits and the unlawful rights which the Creator has set for them.

Compression-Aware Query Optimization Using Cost-Based Model

In these days to enhance the performance of databases researchers propose compression as well as query optimization. Compression reduces volume of data and query optimization reduces execution time of query. There are some issues while compressing database and performing query optimization the first one is the selection of suitable compression scheme. Second is how to reduce the query execution time. which algorithm we use. How to overcome on the demerits of these two issues. We use dictionary-based approach for compression with many small dictionaries that quickly load in the memory on demand. One big diction requires more time for loading and scanning. We also perform query optimization on database without decompressing it by considering fewer execution plans instead of all. The use of many small - dictionaries save space, load quickly. Due to compression, smaller size of intermediate results, less I/O operation required and less buffer misses occurs. While in query optimization selection of randomized algorithm with enhancement consider fewer execution plans instead of all plans. This reduce query execution time. We conclude that the use of compression and query optimization improve the performance of database.