Explained how to write simple function and execute it in R language. Given syntax and example explanation.
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House keeping you need to do in R Language before closing your session. The popular functions you need to use are search(), objects(), list(), ls(), and detach().
SQL Order of execution is sequence of steps. The database executes each Query in a particular order. Read more.
Data access is much faster in Hashing compared to the index. Read the differences between Hashing and Index.
SQL ALTER statement you can use to add columns to existing TABLE in RDBMS. Not only TABLE you can read all database object where you can use ALTER.
Ordering the SQL result is possible by giving DESC or ASC in your query. These must be used along with ORDER BY clause. Read more.
