Q1. Please wrrite. a query statement from emp table for all employees to display employee's name, job, and name_length. The name_length must be less than or equal to 5 characters. Label the column heading to ENAME, JOB, and NAME_LENGTH. Order your results by the length of ename descending order. The result should be like below: [image below - scr_Q1.png] Q2) Please write .a query statement from emp table to display deptno 30’s ename, deptno, sal, and sal_format for all employees. Format the sal_format to be 15 characters long with a left-padded $. Order your results by the sal column. Label the column headingto ENAME, DEPTNO, SAL, and SAL_FORMAT. The result should be like below: [image brlow - scr_Q2.png] Here is the material needed to answer those questions: Material: https://drive.google.com/file/d/14OwWDIybjAIeuHCO7McupV08gJs9nB-8/view?usp=sharing https://drive.google.com/file/d/1npRH8JoJ6GYBzPU3iNjLXluvCyhr2tMu/view?usp=sharing
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.
Q1. Please wrrite. a query statement from emp table for all employees to display employee's name, job, and name_length. The name_length must be less than or equal to 5 characters. Label the column heading to ENAME, JOB, and NAME_LENGTH. Order your results by the length of ename descending order. The result should be like below:
[image below - scr_Q1.png]
Q2) Please write .a query statement from emp table to display deptno 30’s ename, deptno, sal, and sal_format for all employees. Format the sal_format to be 15 characters long with a left-padded $. Order your results by the sal column. Label the column headingto ENAME, DEPTNO, SAL, and SAL_FORMAT. The result should be like below:
[image brlow - scr_Q2.png]
Here is the material needed to answer those questions:
Material:
- https://drive.google.com/file/d/14OwWDIybjAIeuHCO7McupV08gJs9nB-8/view?usp=sharing
- https://drive.google.com/file/d/1npRH8JoJ6GYBzPU3iNjLXluvCyhr2tMu/view?usp=sharing
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