Create a new table, EMP_PROMOTION to store the employees information. You must use a subquery to create the new table. Make the salary column invisible. Display the structure of the table in SQL Developer. Also use a SELECT statement to display all records from the new table EMP_PROMOTION.
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.
Create a new table, EMP_PROMOTION to store the employees information. You must use a subquery to create the new table. Make the salary column invisible. Display the structure of the table in SQL Developer. Also use a SELECT statement to display all records from the new table EMP_PROMOTION.
Objective:
A table "EMP_PROMOTION" would be created using sub-query from an existing relation containing employee data. After that, the salary attribute would be made invisible altering the new table so that information for this column would not be displayed.
EMP_PROMOTION {EMPLOYEE_ID,MANAGER_ID,FIRSTNAME,LASTNAME,SALARY}
Here, the SQL queries are executed on the Oracle server.
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