a) Display all record of those STD whose name 3rd character is D or B or C? b) Write query to display employee's name and salary after the increment of 1000? c) Display the employee name, employee No and start date of employees hired between February 1998, and May 1998. Order the query in ascending order by start date. d) Display the employee Name and department number of all employees who work in department 10 and 30. e) Display the name and salary of all employees who do not have a grade.
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.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps