More JDBC questions in PG6.3
От | Schlough, Mark |
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Тема | More JDBC questions in PG6.3 |
Дата | |
Msg-id | 3506baa40f29002@m0e3s11.nmb.norwest.com обсуждение исходный текст |
Ответы |
Re: More JDBC questions in PG6.3
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Список | pgsql-interfaces |
Does anyone have an example of how this feature works? I'm still reasonably new to JDBC and I want to get this working properly. I'm at a loss of how to implement the driver differently than I already have. Any and all help is appreciated. Basically I am trying to get the ResultSetMetaData to work. (See the code snippet below) [Please CC your reply to mtschlou@cloudnet.com] Thanks Mark ______________________________ Reply Separator _________________________________ Subject: Re: More JDBC questions in 6.3 Author: Peter T Mount [SMTP:pmount@maidast.demon.co.uk] at NMB Date: 3/6/98 3:48 PM On Fri, 6 Mar 1998, Schlough, Mark wrote: > ---------my other questions---------------- > > I am using the book "JDBC Database Access with Java" and after > using > some of the examples, (available for download from > http://www.javasoft.com/products/jdbc/book.html) I run > into problems. > I'm wondering if these methods are supported by the > driver: > The questions so far seem to deal with ResultSetMetaData > > I am having trouble getting it to return the datatypes, > such as VARCHAR, INTEGER, FLOAT,.... > > code snip ----- 8-< ---- > > ResultSetMetaData rsmd > > int columns = rsmd.getColumnCount(); > for (int i = 1; i<= columns; i++) { > > int jdbcType = rsmd.getColumnType(i) > String name = rsmd.getColumnTypeName(i) > System.out.print("Column "+1+" is JDBC type " + jdbcType); > System.out.print(", which the DBMS calls " + name); > } > > code snip ----- 8-< ---- > > the code runs, but I get results like: > > Column 1 is JDBC type 12. which the DBMS calls null > Column 2 is JDBC type 4. which the DBMS calls null > Column 3 is JDBC type 8. which the DBMS calls null > Column 4 is JDBC type 4. which the DBMS calls null > > does anyone know if these ResultSetMetaData methods that > look at the datatypes are supposed to work, or are they not > implemented? > If they are supposed to work, could someone help me figure out what > I am missing. > > Thanks in advance > > Mark I'll check the current source to make sure nothing is broken, but this is supported (and has been for quite some time) If you have some sample code to test this please let me know, If there is code in the release that I am too blind to see then let me know too
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