Write the SQL code to create a copy of EMP_1, naming the copy EMP_2. Then write the SQL code that will add the attributes EMP_PCT and PROJ_NUM to its structure. The EMP_PCT is the bonus percentage to be paid to each employee. The new attribute characteristics are shown next: EMP_PCT NUMBER(4,2) PROJ_NUM CHAR(3)
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.
Write the SQL code to create a copy of EMP_1, naming the copy EMP_2. Then write
the SQL code that will add the attributes EMP_PCT and PROJ_NUM to its structure.
The EMP_PCT is the bonus percentage to be paid to each employee. The new attribute
characteristics are shown next:
EMP_PCT NUMBER(4,2)
PROJ_NUM CHAR(3)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
