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Packagejava.sql
ArrayBlobCallableStatementClobConnec.onDatabaseMetaDataDriverNClobParameterMetaDataPreparedStatementRef
ResultSetResultSetMetaDataRowIdSavepointSQLDataSQLInputSQLOutputSQLXMLStatementStructWrapper
Packagejava.sql
ArrayBlobCallableStatementClobConnec.onDatabaseMetaDataDriverNClobParameterMetaDataPreparedStatementRef
ResultSetResultSetMetaDataRowIdSavepointSQLDataSQLInputSQLOutputSQLXMLStatementStructWrapper
Packagejava.sql
DriverManager
ThebasicserviceformanagingasetofJDBCdrivers
7klasserijava.sql.Vitrengerénavdem:
Herfinnervimetodersomgirossenforbindelse.DeSeskjermedmetodersomreturnerer(enpeker.l)etobjektavtypenConnec.on.
DriverManager
sta.cConnec.ongetConnec.on(Stringurl,Proper.esinfo)
Herfinnervimetodersomgirossenforbindelse.DeSeskjermedmetodersomreturnerer(enpeker.l)etobjektavtypenConnec.on.
DriverManager
sta.cConnec.ongetConnec.on(Stringurl,Proper.esinfo)
Herfinnervimetodersomgirossenforbindelse.DeSeskjermedmetodersomreturnerer(enpeker.l)etobjektavtypenConnec.on.
DriverManager.getConnec.on(url,p);
DriverManager.getConnec.on(url,p);
String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Properties p = new Properties();
DriverManager.getConnec.on(url,p);
String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Properties p = new Properties(); p.setProperty("ssl", "true");
DriverManager.getConnec.on(url,p);
String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Properties p = new Properties(); p.setProperty("ssl", "true"); p.setProperty("sslfactory",
"org.postgresql.ssl.NonValidatingFactory");
DriverManager.getConnec.on(url,p);
String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Properties p = new Properties(); p.setProperty("ssl", "true"); p.setProperty("sslfactory",
"org.postgresql.ssl.NonValidatingFactory"); p.put("user", "michael");
DriverManager.getConnec.on(url,p);
String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Properties p = new Properties(); p.setProperty("ssl", "true"); p.setProperty("sslfactory",
"org.postgresql.ssl.NonValidatingFactory"); p.put("user", "michael"); p.put("password", passord);
DriverManager.getConnec.on(url,p);
String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Properties p = new Properties(); p.setProperty("ssl", "true"); p.setProperty("sslfactory",
"org.postgresql.ssl.NonValidatingFactory"); p.put("user", "michael"); p.put("password", passord);
DriverManager.getConnec.on(url,p);
String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Properties p = new Properties(); p.setProperty("ssl", "true"); p.setProperty("sslfactory",
"org.postgresql.ssl.NonValidatingFactory"); p.put("user", "michael"); p.put("password", passord);
Proper.es String
p url"jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"
DriverManager.getConnec.on(url,p);
Proper.es String
p url"jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"
sta.cConnec.ongetConnec.on(Stringurl,Proper.esinfo)
KlassedatastrukturforklassenDriverManager
Connec.oncon=DriverManager.getConnec.on(url,p);
Proper.es String
p url"jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"
sta.cConnec.ongetConnec.on(Stringurl,Proper.esinfo)
KlassedatastrukturforklassenDriverManager
DriverManager
sta.cConnec.ongetConnec.on(Stringurl,Proper.esinfo)
Herfinnervimetodersomgirossenforbindelse.DeSeskjermedmetodersomreturnerer(enpeker.l)etobjektavtypenConnec.on.
DriverManager
sta.cConnec.ongetConnec.on(Stringurl,Proper.esinfo)
Herfinnervimetodersomgirossenforbindelse.DeSeskjermedmetodersomreturnerer(enpeker.l)etobjektavtypenConnec.on.
EtConnec.on-objekt
Connec.on
conStatementcreateStatement()
/*CreatesaStatementobjectforsendingSQLstatementstothedatabase.*/
EtConnec.on-objekt
Connec.on
conStatementcreateStatement()
Statement stm = con.createStatement();
/*CreatesaStatementobjectforsendingSQLstatementstothedatabase.*/
EtConnec.on-objekt
Connec.on
conStatementcreateStatement()
Statement stm = con.createStatement();
Statement
stm
/*CreatesaStatementobjectforsendingSQLstatementstothedatabase.*/
EtStatement-objekt
Statement
stm
ResultSetexecuteQuery(Stringsql)
ExecutesthegivenSQLstatement,whichreturnsasingleResultSetobject.
EtStatement-objekt
Statement
stm
ResultSetexecuteQuery(Stringsql)
Stringspørring="selectF.filmidasfid,F..tleas.Sel,F.prodyearaspaarfromfilmFnaturaljoinFilmcountryCwhereC.country='Norway’";
EtStatement-objekt
Statement
stm
ResultSetexecuteQuery(Stringsql)
Stringspørring="selectF.filmidasfid,F..tleas.Sel,F.prodyearaspaarfromfilmFnaturaljoinFilmcountryCwhereC.country='Norway’";
String spørring = "select F.filmid as fid, " +" F.title as tittel, " +" F.prodyear as paar " +"from film F natural join Filmcountry C " +"where C.country='Norway' " ;
EtStatement-objekt
Statement
stm
ResultSetexecuteQuery(Stringsql)
String spørring = "select F.filmid as fid, " +" F.title as tittel, " +" F.prodyear as paar " +"from film F natural join Filmcountry C " +"where C.country='Norway' " ;
EtStatement-objekt
Statement
stm
ResultSetexecuteQuery(Stringsql)
String spørring = "select F.filmid as fid, " +" F.title as tittel, " +" F.prodyear as paar " +"from film F natural join Filmcountry C " +"where C.country='Norway' " ; ResultSet norskeFilmer = stm.executeQuery (spørring);
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
Atableofdatarepresen7ngadatabaseresultset,whichisusuallygeneratedbyexecu7ngastatementthatqueriesthedatabase.
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
AResultSetobjectmaintainsacursorpoin7ngtoitscurrentrowofdata.Ini7allythecursorisposi7onedbeforethefirstrow.Thenextmethodmovesthecursortothenextrow,andbecauseitreturnsfalsewhentherearenomorerowsintheResultSetobject,itcanbeusedinawhilelooptoiteratethroughtheresultset..
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
AResultSetobjectmaintainsacursorpoin7ngtoitscurrentrowofdata.Ini7allythecursorisposi7onedbeforethefirstrow.Thenextmethodmovesthecursortothenextrow,andbecauseitreturnsfalsewhentherearenomorerowsintheResultSetobject,itcanbeusedinawhilelooptoiteratethroughtheresultset..
cursor
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
AdefaultResultSetobjectisnotupdatableandhasacursorthatmovesforwardonly.Thus,youcaniteratethroughitonlyonceandonlyfromthefirstrowtothelastrow.ItispossibletoproduceResultSetobjectsthatarescrollableand/orupdatable.
cursor
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
Movesthecursorfrowardonerowfromitscurrentposi7on.
cursor
booleannext()
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
Movesthecursorfrowardonerowfromitscurrentposi7on.
cursor
booleannext()
thecurrentrow
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
Movesthecursorfrowardonerowfromitscurrentposi7on.
cursor
booleannext()
thecurrentrow
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
Movesthecursorfrowardonerowfromitscurrentposi7on.
cursor
booleannext()
thecurrentrow
EtResultSet-objekt
ResultSet
norskeFilmer
ResultSet norskeFilmer = stm.executeQuery (spørring);
fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
Movesthecursorforwardonerowfromitscurrentposi7on.
cursor
booleannext()
EtResultSet-objekt
ResultSet
norskeFilmer fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
Movesthecursorforwardonerowfromitscurrentposi7on.RetrievesthevalueofthedesignatedcolumninthecurrentrowofthisResultSetobjectasaString.RetrievesthevalueofthedesignatedcolumninthecurrentrowofthisResultSetobjectasanint.
cursor
booleannext()
StringgetString(StringcolumnLabel)
intgetInt(intcolumnIndex)
thecurrentrow
ResultSet
norskeFilmer fid | tittel | paar ---------+-------------------------------+------ 230 | Varis | 2004 340 | Anolit | 2002 356 | Kvinnen i mitt liv | 2003 632 | Syx | 1988 664 | Portrettet | 1954 774 | 22 | 2000 792 | Andre omgang | 2007 998 | Digre daier | 1997 1014 | Stopp | 2001 1030 | Tid for frokost | 2004 ...
cursor
booleannext()
StringgetString(StringcolumnLabel)
intgetInt(intcolumnIndex)
thecurrentrow
while ( norskeFilmer.next() ) { fm = new Film(norskeFilmer.getInt("fid")); fm.tittel = norskeFilmer.getString("tittel"); fm.produksjonsår = norskeFilmer.getInt("paar"); filmer.add(fm); }
Properties p = new Properties(); p.setProperty("ssl", "true"); p.setProperty("sslfactory", "org.postgresql.ssl.NonValidatingFactory"); p.put("user", "michael"); p.put("password", passord); // "ifikurs_ro"); String url = "jdbc:postgresql://dbpg-ifi-kurs.uio.no/fdb"; Connection con = DriverManager.getConnection(url, p); } Statement stm = con.createStatement(); String spørring = "select F.filmid as fid, " +" F.title as tittel, " +" F.prodyear as paar " +"from film F natural join Filmcountry C "
+"where C.country='Norway'" ; ResultSet norskeFilmer = stm.executeQuery (spørring); while (norskeFilmer.next() ) { fm = new Film(norskeFilmer.getInt("fid")); fm.tittel = norskeFilmer.getString("tittel"); fm.produksjonsår = norskeFilmer.getInt("paar"); filmer.add(fm); }
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