what does pairwise distinct mean?

Today, We want to share with you what does pairwise distinct mean?.In this post we will show you antonym with meaning, hear for meaning in the Cambridge English Dictionary we will give you demo and example for implement.In this post, we will learn about SQL SELECT DISTINCT | COUNT | ROWS with an example.

what does pairwise distinct mean?

There are the Following The simple About Using MySQL to Eliminate Duplicates Full Information With Example and source code.

As I will cover this Post with live Working example to develop PostgreSQL SELECT By Practical Examples, so the some major files and Directory structures for this example is following below.

what does distinct mean
what does distinct mean

SQL – Distinct Keyword

The two or more same concepts are quite exect unique distincts (from each all other).There are multiple datas distincts factions within the single political party.

what does pairwise distinct mean?

The simple SQL DISTINCT keyword is used in one type of the data conjunction with the simple MySQL SELECT statement to get all the matching rows as well as retreving only unique rows.

There may be a situation when you have more multiple matching rows in a table. While retreving like as rows, it creates more sense to fetch only those unique rows instead of retreving matching rows.

NOTE: If used to distinct keyword is any more multiple database table columns, the distinct matching is displayed in the output set.

SQL: DISTINCT Clause

The SQL DISTINCT statement is used to remove/delete matching from the rows set of a SELECT query.

Syntax of the DISTINCT

The PHP MysqL basic syntax of DISTINCTs keyword to get the matching rows is as follows −

SELECT DISTINCT table_column1, table+column2,.....columnN 
FROM your_db_table_name
WHERE [condition]

SQL Example

for simple Case of the School of the STUDENTSX table having the following some rows −

+----+----------+-----+-----------+----------+
| ID | NAME     | AGE | ADDRESS   | STUDFE   |
+----+----------+-----+-----------+----------+
|  1 | Krunal   |  32 | Rajkotnew |  2540.00 |
|  2 | Kumarj   |  25 | KAlav     |  1645.00 |
|  3 | Kishanl  |  23 | Diga      |  2540.00 |
|  4 | Chandios |  25 | Bombay    |  6485.00 |
|  5 | Divyas   |  27 | Mujnka    |  9800.00 |
|  6 | Sejal    |  22 | UK        |  4852.00 |
|  7 | Mayur    |  24 | Kalava    | 22540.00 |
+----+----------+-----+-----------+----------+

First, let us see how the following SELECT query returns the matching studentfees records.

SQL> SELECT STUDFE FROM STUDENTSX
   ORDER BY STUDFE;

This would construct the following simple result, where the studentfees (2540) is coming twice which is a matching rows from the original Database Mysql table.

+----------+
| STUDFE   |
+----------+
|  1645.00 |
|  2540.00 |
|  2540.00 |
|  4852.00 |
|  6485.00 |
|  9800.00 |
| 22540.00 |
+----------+

Now, let us use the DISTINCT keyword with the above SELECT statement and then see the output.

SQL> SELECT DISTINCT STUDFE FROM STUDENTSX
   ORDER BY STUDFE;

This would construct the following output where we do not have any one matching entry.

+----------+
| STUDFE   |
+----------+
|  1645.00 |
|  2540.00 |
|  4852.00 |
|  6485.00 |
|  9800.00 |
| 22000.00 |
+----------+

Web Programming Tutorials Example with Demo

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