On 20. okt. 2013, at 04:01, Bob M rgmatth...@orcon.net.nz wrote:
hi
I have a derby database and a table with over 4,000 records…
It is easier to think about a table as a hash table or tree, rather than an
array. So there isn't really a concept of first or last other than the
Hello Dyre
Many thanks for your suggestions...
The primary key consists of the first two columns being Date and Hours e.g.
01-01-2009, 0
01-01-2009, 6
01-01-2009, 12
01-01-2009, 18
02-01-2009, 0 etc.
Does this lead to alternative suggestions?
Bob M
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rs = s.executeQuery(SELECT COUNT(*) FROM TABLE_NAME);
int recordCount = ??;
The query returned a result set.
Call next() on the result set to move to the first (and only)
row in the result set.
Then you can call getInt() to get the integer value of the
first (and only) column in that row.
Hi Bryan
so..
rs. = s.executeQuery(SELECT COUNT(*) FROM Table_name);
rs.next();
int recordCount = rs.getInt();
I get compilation error on last line
The method getInt(int) in the type ResultSet in not applicable for the
arguments ()
Bob M
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int recordCount = rs.getInt();
I get compilation error on last line
The method getInt(int) in the type ResultSet in not applicable for the
arguments ()
Indeed, you have to specify the columnIndex.
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#getInt(int)
Specify getInt( 1
