Hacker Rank SQL

Select By ID Solution

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Also visit this link:ย  Select All Solution


 

Problem

Query all columns for a city inย CITYย with theย IDย 1661.

Theย CITYย table is described as follows:

Field Type
ID NUMBER
NAME VARCHAR2(17)
COUNTRYCODE VARCHAR2(3)
DISTRICT VARCHAR2(20)
POPULATION NUMBER

 

Solution โ€“ Select By ID

MySQL Code
SELECTย *ย FROMย CITYย WHEREย IDย =ย 1661;

 


In SQL Server, the SELECT statement is used to retrieve data from one or more tables. The SELECT statement retrieves data from a table based on the specified conditions and returns the result set. The SELECT statement can be used with various clauses such as WHERE, GROUP BY, HAVING, ORDER BY, etc. to filter and sort the data.

The SELECT statement can also be used to retrieve data based on a specific ID using the WHERE clause. For example, if you have a table named “Customers” with columns “CustomerID”, “CustomerName”, “ContactName”, “Country”, and “City”, you can use the following query to retrieve data for a specific customer ID:

Sql Query


SELECT * FROM Customers WHERE CustomerID = 1

This query will retrieve all columns for the customer with ID 1.

I hope this helps! Let me know if you have any other questions.

 

 

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