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POselect distinct pair of values from sqlite database
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copied!<p>I have a sqlite database that has a table structure as follows</p> <p>column 1: source ip <br>column 2: source port <br>column 3: destination ip <br>column 4: destination port <br>column 5: protocol <br>column 6: type <br></p> <p>snapshot of the table looks like this</p> <pre>╔═══╦══════╦═══╦═════╦═════╦═══╗ ║ A ║ 444 ║ B ║ 555 ║ TCP ║ 2 ║ ╠═══╬══════╬═══╬═════╬═════╬═══╣ ║ B ║ 555 ║ A ║ 444 ║ TCP ║ 1 ║ ╠═══╬══════╬═══╬═════╬═════╬═══╣ ║ C ║ 100 ║ A ║ 5525║ UDP ║ 1 ║ ╠═══╬══════╬═══╬═════╬═════╬═══╣ ║ B ║ 5222 ║ C ║ 2552║ TCP ║ 2 ║ ╠═══╬══════╬═══╬═════╬═════╬═══╣ ║ A ║ 5525 ║ C ║ 100 ║ UDP ║ 2 ║ ╠═══╬══════╬═══╬═════╬═════╬═══╣ ║ C ║ 2552 ║ B ║ 5222║ TCP ║ 1 ║ ╚═══╩══════╩═══╩═════╩═════╩═══╝ </pre> <p>In the above table you can see that there is entry for both (A,444) , (B,555) and (B,555), (A,444). I want to select the distinct [(source ip,source port), (destination ip,destination port), (protocol)] i.e., i want a query that gives a output as follows</p> <pre>╔═══╦══════╦═══╦═════╦═════╦═══╗ ║ A ║ 444 ║ B ║ 555 ║ TCP ║ 2 ║ ╠═══╬══════╬═══╬═════╬═════╬═══╣ ║ B ║ 5222 ║ C ║ 2552║ TCP ║ 2 ║ ╠═══╬══════╬═══╬═════╬═════╬═══╣ ║ C ║ 100 ║ A ║ 5525║ UDP ║ 1 ║ ╚═══╩══════╩═══╩═════╩═════╩═══╝ </pre> <p>Thanks in advance </p>

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