Hi! dear all,
I encountered a problem with designing SQL statement. For example, I
want to query population information from a "city" table, and the
records returned must be ordered according to the population of the
city. Like this:
+---------------------------+---------------------------------+---------+
|capital | country | Population |
+---------------------------+---------------------------------+------------+
| Seoul | South Korea | 9981619 |
|Jakarta | Indonesia | 9604900 |
|Ciudad de M騙ico | Mexico | 8591309 |
|Moscow | Russian Federation | 8389200 |
|Tokyo | Japan | 7980230 |
|Peking | China | 7472000 |
|London | United Kingdom | 7285000 |
|Cairo | Egypt | 6789479 |
This is a very simple SQL statement, but I want to add sequence number
to each city, for example Seoul is number 1, Jakarta is number 2 and
so on. Namely like this:
+-------+---------------------------+---------------------------------+---------+
| |capital | country |
Population |
+-------+---------------------------+---------------------------------+------------+
| 1 | Seoul | South Korea | 9981619 |
| 2 |Jakarta | Indonesia | 9604900 |
| 3 |Ciudad de M騙ico | Mexico | 8591309 |
| 4 |Moscow | Russian Federation | 8389200 |
| 5 |Tokyo | Japan | 7980230 |
| 6 |Peking | China | 7472000 |
| 7 |London | United Kingdom | 7285000 |
| 8 |Cairo | Egypt | 6789479 |
Then, how do I get such a result?
Best wishes
Hongwei Liu
2005/06/03
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