Select Operations in CSQL

SELECT OPERATION IN CSQL

Select query retrieves information from a database and structures them into a result table.
Writing SELECT queries is a skill that you need a lot in your job.
Basically SELECT queries are difficult when there is the question of the occurrences of the following.
Using Aggregate Functions
Without GROUP BY
With GROUP BY
JOIN
Sub Query
These Structures can be easily understood if you will follow the diagrammatic representation given below.
What you will get from the Diagram?
This digram gives a brief idea about How to write a query.
It contains all most all keywords and clauses, which are used in SQL query, and those which are supported in CSQL
You can also collect a huge collection of syntaxes for SELECT query.

WHERE GROUP BY CROSS JOIN ORDER BY INNER JOIN SELF JOIN <AGG(f1)...> * LIMIT <[f1], ... > <[f1], AGG(f2)> SELECT < [t1.][f1]...> < [t1.][f1],... AGG([t2.][f2])...> FROM <t1> FROM <t1>, <t2>,... <PREDICATE> <PREDICATE on Aggregate> DISTINCT HAVING ON FROM <table_name>... <table_name>... LEFT JOIN <[t1.][f1]...> JOIN PREDICATE <[t1.][f1]...>

Select Operations in CSQL

by Nihar Ranjan Paital

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