I have put it to github in the old place - https://github.com/raaivore/APIexperiment.git
Raivo On Sat, Sep 30, 2023 at 1:53 PM Dave Cramer <davecramer@postgres.rocks> wrote: > Again, can you please post the solution so others can learn as well ? > > Dave Cramer > www.postgres.rocks > > > On Sat, 30 Sept 2023 at 06:49, Raivo Rebane <raivor...@gmail.com> wrote: > >> Thanks for very much for help. >> It seems that I can do the test project for new job. >> In future I use help of chat.gpt >> >> Regards >> Raivo >> >> On Sat, Sep 30, 2023 at 11:15 AM <postgresql439...@heinz-it.de> wrote: >> >>> Am 30.09.23 um 08:33 schrieb Raivo Rebane: >>> > Hi, >>> > sometimes I am lucky and don't get the old error, but sometime not. >>> > >>> > I tried to use PreparedStatement, but I got error - >>> > org.postgresql.util.PSQLException: Can't use query methods that take a >>> > query string on a PreparedStatement. >>> > at >>> > >>> org.postgresql.jdbc.PgPreparedStatement.executeUpdate(PgPreparedStatement.java:145) >>> > at MushroomAPIs.Clean.deleteAllRecordsFromTable(Clean.java:34) >>> > and java code is - >>> > >>> > String deleteQuery = "DELETE FROM " + tableNam >>> > >>> > System.out.println(deleteQuery); >>> > >>> > PreparedStatement statement = connection.prepareStatement(deleteQuery); >>> if your statement is already prepared with query, use >>> statement.exequte(); or statement.executeQuery() without querystring; >>> if you have a new statement without query, use execute and such with >>> query string. >>> > >>> > May be it's easy for me to use normal statement ? >>> > >>> > >>> > Raivo >>> > >>> > >>> > On Sat, Sep 30, 2023 at 8:27 AM Raivo Rebane <raivor...@gmail.com> >>> wrote: >>> [snip] >>> >>> >>> Am 30.09.23 um 09:18 schrieb Raivo Rebane: >>> > I fix previous error what was my bad knowledge, >>> > But new error occur which is related to postgres postgis jars. >>> > If You are kind to answer me more; >>> > >>> > Java code is : >>> > >>> > public static boolean CheckIsNewInMushrooms(Connection connection, >>> Point >>> > AddLocation, String AddDescription) { >>> > >>> > boolean IsNew = true; >>> > >>> > >>> > try { >>> > >>> > String sqlQuery = "SELECT location, description FROM mushrooms"; >>> > >>> > try (PreparedStatement preparedStatement = connection.prepareStatement( >>> > sqlQuery)) { >>> > >>> > ResultSet resultSet = preparedStatement.executeQuery(); >>> > >>> > >>> > while (resultSet.next()) { >>> > >>> > Point point = (Point) resultSet.getObject("location"); >>> > >>> > String description = resultSet.getString("description"); >>> > >>> > >>> > if (AddLocation.x == point.x && AddLocation.y == point.y && >>> AddDescription >>> > .equals(description)) >>> > >>> > IsNew = false; >>> > >>> > } >>> > >>> > } >>> > >>> > } catch (SQLException e) { >>> > >>> > e.printStackTrace(); >>> > >>> > } >>> > >>> > >>> > return IsNew; >>> > >>> > } >>> > >>> > and at line >>> > >>> > Point point = (Point) resultSet.getObject("location"); >>> > >>> > >>> > java.lang.ClassCastException: org.postgresql.util.PGobject cannot be >>> cast >>> > to org.postgis.Point >>> > at >>> > >>> MushroomAPIs.ProcAddMushrooms.CheckIsNewInMushrooms(ProcAddMushrooms.java:45) >>> > How to get Point from resultset ? >>> > Is it related to postgis driver ? >>> try another way to cast to Point. >>> look for the way over PGgeometry like here >>> https://postgis.net/docs/manual-3.3/ch07.html#idm3092 >>> > >>> > Regards >>> > Raivo >>> >>> >>>