"if exists certain line in sql table java condition" Code Answer's
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if exists certain line in sql table java condition
public void ftpTableCheck(String host, String port, String username, String password) {
try {
String query = "SELECT (count(*) > 0) as found FROM ftp WHERE Host LIKE ? AND Username LIKE ?";
PreparedStatement pst = conn.prepareStatement(query);
pst.setString(1, host);
pst.setString(2, username);
try (ResultSet rs = pst.executeQuery()) {
// Only expecting a single result
if (rs.next()) {
boolean found = rs.getBoolean(1); // "found" column
if (found) {
// You have rows
} else {
// You have no rows
}
}
}
} catch (SQLException e) {
e.printStackTrace();
}
}
Source: stackoverflow.com
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