Q. No 4. Find out candidate keys, dependencies and normalize the following table upto 3NF. C_ID | C_Name Prop Address Rent Start_From Finish Owner_ID Owner_Name O 32 O 40 С56 Usama Р4 ISB 15000 10-10-2018 1-08- Bilal P16 LHR 9000 01-09-1986 2019 Junaid 28-09- 1988 O_32 O 40 O 40 С76 Babar Р4 ISB 15000 15-01-2000 22-12- Bilal P36 RWP 8000 28-08-2007 2001 Junaid P16 ISB 9000 01-10-2011 28-10- Junaid 2009 28-02- 2014
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
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