IN comparator in preparted statement

Question

Hello,
I'm trying to convert a SQL query to a prepared statement, but I seems it's not working correctly
I've this SQL string as resource
FileFormat.GET_BY_ID_LIST=SELECT * FROM files_formats_list WHERE id in (?) ORDER BY nameand in the code I add a string parameter this way
statement.setString(1, getFormatStr());the result is always the first occurence of the first id of the string
I browsed around the forum and the net but didn't find anything about this.
Can this be done? or is it impossible and I've to desing the software in another way?
Simone

Answer 1

You have couple options:
String[] id = new String[3];
id[0]="1";
id[1]="2";
id[2]="3";
String sql = "SELECT * FROM files_formats_list WHERE id in (?,?,?) ORDER BY name";          
PreparedStatement ps = connection.prepareStatement(sql);
ps.setString(1, id[0]);
ps.setString(2, id[1]);
ps.setString(3, id[2]);
ResultSet rs = ps.executeQuery();
String id = "1, 2, 3";
String sql = "SELECT * FROM files_formats_list WHERE id in ("+ id + ") ORDER BY name";          
Statement st = connection.createStatement();
ResultSet rs = st.executeQuery(sql);
// and I fond this last solution very recently
// Note: setString will put single quote to string ids
// Before: 1','2','3
// After: '1','2','3'
String ids = "1', '2', '3";
String sql = "SELECT * FROM files_formats_list WHERE id in (?) ORDER BY name";          
PreparedStatement ps = connection.prepareStatement(sql);
ps.setString(1, ids);
ResultSet rs = ps.executeQuery();
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