Can I use COUNT() and DISTINCT together?

I would like to count the number of rows from a mysql table and not to include duplicate en开发者_JAVA技巧tries,

Could I use distinct with count()?

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Sure.

SELECT COUNT(DISTINCT column) FROM table;

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What you need is the following:

SELECT field_type_name, count(*) FROM fields GROUP BY field_type_name;

This will give you something like this:

image   14
string  75
text     9

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 SELECT COUNT(DISTINCT field) from Table

See this.

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SELECT count(DISTINCT column Name) as alias from table_Name;