52 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			52 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| title: SQL Select Distinct Statement
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| ---
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| ## SQL Select Distinct Statement
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| 
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| ### Introduction
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| This keyword allows us to get lists of unique values in a column. This guide will demonstrate that.
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| 
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| ### Full display of the data in the student table 
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| ```sql
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| USE fcc_sql_guides_database;
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| SELECT studentID, FullName, sat_score, programOfStudy, rcd_Created, rcd_Updated FROM student;
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| ```
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| ```text
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| +-----------+------------------------+-----------+------------------+---------------------+---------------------+
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| | studentID | FullName               | sat_score | programOfStudy   | rcd_Created         | rcd_Updated         |
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| +-----------+------------------------+-----------+------------------+---------------------+---------------------+
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| |         1 | Monique Davis          |       400 | Literature       | 2017-08-16 15:34:50 | 2017-08-16 15:34:50 |
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| |         2 | Teri Gutierrez         |       800 | Programming      | 2017-08-16 15:34:50 | 2017-08-16 15:34:50 |
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| |         3 | Spencer Pautier        |      1000 | Programming      | 2017-08-16 15:34:50 | 2017-08-16 15:34:50 |
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| |         4 | Louis Ramsey           |      1200 | Programming      | 2017-08-16 15:34:50 | 2017-08-16 15:34:50 |
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| |         5 | Alvin Greene           |      1200 | Programming      | 2017-08-16 15:34:50 | 2017-08-16 15:34:50 |
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| |         6 | Sophie Freeman         |      1200 | Programming      | 2017-08-16 15:34:50 | 2017-08-16 15:34:50 |
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| |         7 | Edgar Frank "Ted" Codd |      2400 | Computer Science | 2017-08-16 15:35:33 | 2017-08-16 15:35:33 |
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| |         8 | Donald D. Chamberlin   |      2400 | Computer Science | 2017-08-16 15:35:33 | 2017-08-16 15:35:33 |
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| |         9 | Raymond F. Boyce       |      2400 | Computer Science | 2017-08-16 15:35:33 | 2017-08-16 15:35:33 |
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| +-----------+------------------------+-----------+------------------+---------------------+---------------------+
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| 9 rows in set (0.00 sec)
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| ```
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| 
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| ### Get list of fields of study
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| ```sql
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| SELECT DISTINCT programOfStudy FROM student;
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| ```
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| ```text
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| +------------------+
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| | programOfStudy   |
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| +------------------+
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| | Literature       |
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| | Programming      |
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| | Computer Science |
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| +------------------+
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| 3 rows in set (0.00 sec)
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| ```
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| 
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| As with all of these SQL things there is MUCH MORE to them than what's in this introductory guide.  
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| 
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| I hope this at least gives you enough to get started.  
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| 
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| Please see the manual for your database manager and have fun trying different options yourself.
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| 
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