Hello,

I have a MySQL Table 

+-----+-----+-----+-----+-----+-----+-----+
| mon | tue | wed | thu | fri | sat | sun |
+-----+-----+-----+-----+-----+-----+-----+

[download]
And the values it contains are for e.x.: 
 +-----+-----+-----+-----+-----+-----+-----+
 | mon | tue | wed | thu | fri | sat | sun |
 +-----+-----+-----+-----+-----+-----+-----+
1|10/12|     |15/18|     |     |     |     |
2|8/10 |     |     |     |     |     |     |
3|     |10/12|     |     |     |     |     |
4|     |     |14/16|     |     |     |     |
5|9/11 |     |     |     |     |     |     |
 +-----+-----+-----+-----+-----+-----+-----+

[download]
If the user selects the first and the 5th row I want to parse the rows and insert it into other table like this: 
mon10
mon11
mon12
wed15
wed16
wed17
wed18
mon9
mon10
mon11

[download]
And check if the rows are repeating... example: mon10 and mod11 is repeating 2 times, then display an error message.

Hope to find a solution for this!
Thanx

Edit by tye

In reply to Inserting sequences without duplicates by husoft

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