The answer is Count. Count is an aggregate method in SQL that returns the number of rows for a specified column that have non-null values.
<h3>What is the Meaning of Null?</h3>
When a field in a database has no values at all, this is known as null and indicates that the field’s value is unknown.
A null value for a number field, text field, or space value is different from a zero value. Null indicates that no value has been recorded in a database field.
A value and a null cannot be compared. The Structured Query Language query cannot be written as SELECT * FROM Customer where email Address=null, for instance, if it is intended to obtain all customers without email addresses from a Customer Addresses table.
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The king held the highest position in society and priests, warriors, and merchants were also part of the upper class. The Maya believed their rulers were related to gods. Rulers were involved in religious ceremonies, led battles, had beautiful clothing/jewelry, and Kings wore huge feather headdresses and capes of cotton, jaguar skins, and feathers. Priests led religious ceremonies and were the most educated. Warriors fought battles with animal headdresses, jade jewels, and jaguar skin capes on their red and black painted bodies. Merchants directed trade among the cities and organized the transportation and distribution of goods. Together the members of the upper class controlled the politics, religion, and ceremony.
Answer:
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Explanation:
Brazil is rich in a variety of natural resources and is the world's leading producer of tin, iron ore and phosphate. It has large deposits of diamonds, manganese, chromium, copper, bauxite and many other minerals. However, the country has no significant oil reserves.
The United States and Canada have a rich supply of mineral, energy, and forest resources. The U.S. has abundant supplies of coal, copper, lead, iron, natural gas, timber, bauxite, and uranium. 18% of the land in the U.S. is arable land.
The Advantages and disadvantages of social and environmental responsibility in business includes the following.
<h3>Advantages</h3>
- Profitability and Value
- Better Customer Relations
<h3>Disadvantages</h3>
- Costs Money to Implement
- Conflicts with the Profit Motive
- Consumers are Wise to Greenwashing
<h3>
What is social and environmental responsibility </h3>
This refers to the consideration given to people, planet and profit issues that leads to sustained competitive advantage.
It involves Creating socially responsible and sustainable employment practices which help organizations meet current needs without compromising the ability to meet future needs.
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