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SQL: Display all information about all salespeople

SQL Basic Select Statement: Exercise-1 with Solution

Write a SQL statement that displays all the information about all salespeople.

Sample table: salesman


Sample Solution:

SQL Code:

SELECT * FROM salesman;

Output of the Query:

salesman_id	name		city		commission
5001		James Hoog	New York	0.15
5002		Nail Knite	Paris		0.13
5005		Pit Alex	London		0.11
5006		Mc Lyon		Paris		0.14
5007		Paul Adam	Rome		0.13
5003		Lauson Hen	San Jose	0.12

Explanation:

SQL syntax:

SELECT [DISTINCT] [<qualifier>.]<column_name> |*|
<expression>
[AS <column_alias>],...
FROM <table_or_view_name> |
<inline_view>
[[AS] <table_alias>]
[WHERE <predicate>]
[GROUP BY [<qualifier>.]<column_name>,...
[HAVING <predicate>]
]
[ORDER_BY <column_name> |
<column_number>
[ASC | DESC],...
];

Note: Use * to get a complete list of the columns from a table.
Alternate command:
SELECT salesman_id, name, city, commission

SQL Exercises: Syntax of select all the columns from a table

Pictorial presentation :

Result of select all the columns from a table

Practice Online


Query Visualization:

Duration:

Query visualization of Select all the columns from a table - Duration

Rows:

Query visualization of Select all the columns from a table - Rows

Cost:

Query visualization of Select all the columns from a table - Cost

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SQL: Tips of the Day

SQL Server SELECT into existing table. 

INSERT INTO dbo.TABLETWO
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

This assumes there's only two columns in dbo.TABLETWO - you need to specify the columns otherwise:

INSERT INTO dbo.TABLETWO
  (col1, col2)
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

Database: SQL Server

Ref: https://bit.ly/3y6tpA3