9 Types of Clauses You Should Know Before Writing an Oracle Assignment

An oracle is a software produced by Oracle Corporation which aids in managing the data using a relational database system. It supports all kinds of data models, and the data present in the system of oracle is known as ‘oracle.’ The main objective of the software is grid computing & data warehousing. To interact with data, it uses SQL (Structured Query Language) as a query language.

Student faces a lot of difficulties while writing an oracle assignment. Some of them have poor knowledge, inappropriate sources, procrastination, and many more. This leads them to take oracle assignment help from online service providers. The main problem faced by students while learning oracle is when they come across clauses.

Oracle clauses are conditional keywords that are included in querying the database on the requirement. Some of the clauses which are commonly used are- ‘SELECT’ clause for fetching the content from the table, ‘FROM’ clause for mentioning table name, ‘WHERE’ clause for adding conditions, & ‘ORDER BY’ clause for sorting the result data. There are 9 other clauses that are really important to know before you start working on your academic paper. They are as follows:-

FROM - This clause specify the name of a table from where the data is to be accessed.

CONSTRAINT - This clause defines rule which is needed to be followed while you are working on data insertion.

WHERE - This clause specifies which row is to be selected based on conditions. It is also an optional clause which is used for delete statement and update statement.

ORDER BY - This clause specifies in which order the result set rows needed to appear. It is an optional clause for select statement and collect view statement.

FOR UPDATE - Cursors are by default read-only in the oracle, but with the help of this clause, they can be updated. It is a clause that helps in upgradation. It is an optional clause for the select statement.

GROUP BY - This clause help in subset the result into groups. It is also an optional clause for the select statement.

HAVING - This clause restricts the result of group selection, which are generated from the GROUP BY clause.

 USING - This clause is a mandatory clause in the join operations. It shows which column equality is needed to be checked to join two or more tables.

WHERE CURRENT - This clause specifies the location which is deleted at the time of upgradation.

This write-up flashes light on the list of some common and overly used clauses for students who seek oracle assignment help. Here you find information regarding oracle as well as some basic clauses and the main clauses.

Summary- 

This article is on clauses and their uses in oracle. There are 9 different clauses present in this article that are commonly used when you work on oracle.