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The Java 2 Platform SpecificationBooks
Thinking in Java by Bruce EckelCore Java (TM) 2 Volume 2 - Advanced Features by Cay Horstmann and Gary Cornell
PreparedStatement preparedStatement =
connection.prepareStatement(
"Select favoritefood from favoritefoods where catname = ?");
preparedStatement.setString(1, "Cappuccino");
ResultSet resultSet = preparedStatement.executeQuery();
//now run the SQL
while (resultSet.next()) {
System.out.println("Cappuccino's favorite food is "
+ resultSet.getString(1));
}
//traverse the ResultSet,
//The favorite foods are in the first column.
//note: the subscript of the first column is one, not zero.
} catch(SQLException sqlException) {
System.out.println(
"The following error occured in reading " +
"from the favoritefoods table: "
+ sqlException);
}
resultSetName.close();
//closes the result set, releases resources
int columnNumber
resultSetName.findColumn(stringColumnName);
//gives position of column specified in stringColumnName
int concurrencyMode =
resultSetName.getConcurrency();
//JDBC 2.0 and above
//gets concurrency mode,
// either CONCUR_READ_ONLY or CONCUR_UPDATABLE
string stringCursorName =
resultSetName.getCursorName();
int intFetchDirection =
resultSetName.getFetchDirection();
//JDBC 2.0 and above
int intFetchSize =
resultSetName.getFetchSize();
//JDBC 2.0 and above
java.sql.ResultSetMetaData resultSetMetaData =
resultSetName.getMetaData();
//gets MetaData for all of a ResultSets columns
java.sql.PreparedStatement preparedStatementUsed =
resultSetName.getStatement();
//JDBC 2.0 and above
//gets the PreparedStatement used to get this ResultSet
int typeOfResultSet = resultSetName.getType();
//JDBC 2.0 and above
//gets ResultSet type, either TYPE_FORWARD_ONLY,
// TYPE_SCROLL_INSENSITIVE, or TYPE_SCROLL_SENSITIVE
int typeOfResultSet =
resultSetName.refreshRow();
//JDBC 2.0 and above
//refresh current row with current value in the data base
resultSetName.setFetchDirection(intOfDirection);
//JDBC 2.0 and above
//possible values for intOfDirection include
// FETCH_FORWARD and FETCH_REVERSE
resultSetName.setFetchSize(intOfSizeToFetch);
//JDBC 2.0 and above
//number or rows to fetch from the database
// into the ResultSet as rows are needed
boolean wasLastColumnReadNull =
resultSetName.wasNull();
//JDBC 2.0 and above
//returns true if the last column read was null
int cursorPosition =
resultSetName.getRow();
//JDBC 2.0 and above
//gets position of current row,
// returns 0 if there is no current row
boolean isAfterLastRow =
resultSetName.isAfterLast();
//JDBC 2.0 and above
//is the current position after the last row
boolean isBeforeFirstRow =
resultSetName.isBeforeFirst();
//JDBC 2.0 and above
//is the current position before the first row
boolean isBeforeFirstRow =
resultSetName.isFirst();
//JDBC 2.0 and above
//is the current position the first row
boolean isAfterLastRow =
resultSetName.isLast();
//JDBC 2.0 and above
//is the current position the last row
resultSetName.absolute(intOfPosition);
//JDBC 2.0 and above
//move to position of row specified
resultSetName.afterLast();
//JDBC 2.0 and above
//move to position after the last row
resultSetName.beforeFirst();
//JDBC 2.0 and above
//move to position before the first row
resultSetName.first();
//JDBC 2.0 and above
//move to position of the first row
resultSetName.last();
//JDBC 2.0 and above
//move to position of the last row
resultSetName.moveToCurrentRow();
//JDBC 2.0 and above
//move to "remembered" position
resultSetName.moveToInsertRow();
//JDBC 2.0 and above
boolean wasNextSuccessful =
resultSetName.next();
//moves cursor position one row
boolean wasPrevoiusSuccessful =
resultSetName.previous();
//JDBC 2.0 and above
//moves cursor position one row previous
boolean wasRelativeSuccessful =
resultSetName.relative(intRowsToMove);
//JDBC 2.0 and above
//moves cursor position number of rows indicated,
// can be positive or negative
String[] stringArrayToGet =
resultSetName.getArray(intOfColumnToGet);
String[] stringArrayToGet =
resultSetName.getArray(stringColumnNameToGet);
//an example getting an Array of Strings,
// could use any Array
java.math.BigDecimal bigDecimalToGet =
resultSetName.getBigDecimal(intOfPositionToGet);
java.math.BigDecimal bigDecimalToGet =
resultSetName.getBigDecimal(stringColumnNameToGet);
java.sql.Blob blobToGet =
resultSetName.getBlob(intOfPositionToGet);
java.sql.Blob blobToGet =
resultSetName.getBlob(stringColumnNameToGet);
//must be using JDBC 2.0 or above
byte byteToGet =
resultSetName.getByte(intOfPositionToGet);
byte byteToGet =
resultSetName.getByte(stringColumnNameToGet);
byte[] byteArrayToGet =
resultSetName.getBytes(intOfPositionToGet);
byte[] byteArrayToGet =
resultSetName.getBytes(stringColumnNameToGet);
java.sql.Clob clobToGet =
resultSetName.getClob(intOfPositionToGet);
java.sql.Clob clobToGet =
resultSetName.getClob(stringColumnNameToGet);
//must be using JDBC 2.0 or above
java.sql.Date dateToGet =
resultSetName.getDate(intOfPositionToGet);
java.sql.Date dateToGet =
resultSetName.getDate(stringColumnNameToGet);
java.sql.Date dateToGet
= resultSetName.getDate(intOfPositionToGet, calendarToUse);
java.sql.Date dateToGet =
resultSetName.getDate(stringColumnNameToGet, calendarToUse);
//JDBC 2.0 and above
//uses java.util.Calendar
double doubleToGet =
resultSetName.getDouble(intOfPositionToGet);
double doubleToGet =
resultSetName.getDouble(stringColumnNameToGet);
float floatToGet =
resultSetName.getFloat(intOfPositionToGet);
float floatToGet =
resultSetName.getFloat(stringColumnNameToGet);
int intToGet =
resultSetName.getInt(intOfPositionToGet);
int intToGet =
resultSetName.getInt(stringColumnNameToGet);
long longToGet =
resultSetName.getLong(intOfPositionToGet);
long longToGet =
resultSetName.getLong(stringColumnNameToGet);
java.lang.Object objectToGet =
resultSetName.getObject(intOfPositionToGet);
java.lang.Object objectToGet =
resultSetName.getObject(stringColumnNameToGet)
//
java.lang.Object objectToGet =
resultSetName.getObject(intOfPositionToGet, mapToUse);
java.lang.Object objectToGet =
resultSetName.getObject(stringColumnNameToGet, mapToUse);
//mapToUse is a java.util.Map,
// which matches SQL type names to java classes
java.sql.Ref refToGet =
resultSetName.getRef(intOfPositionToGet);
java.sql.Ref refToGet =
resultSetName.getRef(stringColumnNameToGet);
//JDBC 2.0 and above
//java.sql.Ref specifyies a SQL structured
// type value in the database.
short shortToGet =
resultSetName.getShort(intOfPositionToGet);
short shortToGet =
resultSetName.getShort(stringColumnNameToGet);
String stringToGet =
resultSetName.getString(intOfPositionToGet);
String stringToGet =
resultSetName.getString(stringColumnNameToGet);
java.sql.Time timeToGet =
resultSetName.getTime(intOfPositionToGet);
java.sql.Time timeToGet =
resultSetName.getTime(stringColumnNameToGet);
//
java.sql.Time timeToGet =
resultSetName.getTime(intOfPositionToGet, calendarToUse);
java.sql.Time timeToGet =
resultSetName.getTime(stringColumnNameToGet, calendarToUse);
//JDBC 2.0 and above
//uses java.util.Calendar
java.sql.Timestamp timestampToGet =
resultSetName.getTimestamp(intOfPositionToGet);
java.sql.Timestamp timestampToGet =
resultSetName.getTimestamp(stringColumnNameToGet);
//
java.sql.Timestamp timestampToGet =
resultSetName.getTimestamp(intOfPositionToGet, calendarToUse);
java.sql.Timestamp timestampToGet =
resultSetName.getTimestamp(stringColumnNameToGet, calendarToUse);
//JDBC 2.0 and above
//uses java.util.Calendar
java.io.InputStream asciiStreamToGet = resultSetName.getAsciiStream(intOfPositionToGet);
java.io.InputStream asciiStreamToGet = resultSetName.getAsciiStream(stringColumnNameOfToGet);
java.io.InputStream binaryStreamToGet = resultSetName.setBinaryStream(intOfPositionToGet);
java.io.InputStream binaryStreamToGet = resultSetName.setBinaryStream(stringColumnNameOfToGet);
java.io.Reader characterStreamToGet = resultSetName.getCharacterStream(intOfPositionToGet); //must be using JDBC 2.0 or above java.io.Reader characterStreamToGet = resultSetName.getCharacterStream(stringColumnNameOfToGet); //must be using JDBC 2.0 or above
resultSetName.cancelRowUpdates();
//JDBC 2.0 and above
//cancels updates to a row
resultSetName.deleteRow();
//JDBC 2.0 and above
//deletes current row from result set and the database
resultSetName.insertRow();
//JDBC 2.0 and above
//inserts current row into the result set and the database
boolean wasRowDeleted = resultSetName.rowDeleted();
//JDBC 2.0 and above
//returns true if current row has been deleted
boolean wasRowInserted = resultSetName.rowInserted();
//JDBC 2.0 and above
//returns true if current row has been inserted
boolean wasRowUpdated = resultSetName.rowUpdated();
//JDBC 2.0 and above
//returns true if current row has been updated
resultSetName.updateRow();
//JDBC 2.0 and above
//updates current row in the database
resultSetName.updateArray( intOfColumnToUpdate, arrayToUpdateWith); resultSetName.updateArray( stringColumnNameToUpdate, arrayToUpdateWith);
resultSetName.updateBigDecimal( intOfPositionToUpdate, bigDecimalToUpdateWith); resultSetName.updateBigDecimal( stringColumnNameToUpdate, bigDecimalToUpdateWith); //uses java.math.BigDecimal
resultSetName.updateBlob( intOfPositionToUpdate, blobToUpdateWith); resultSetName.updateBlob( stringColumnNameToUpdate, blobToUpdateWith); //must be using JDBC 2.0 or above //uses java.sql.Blob
resultSetName.updateByte( intOfPositionToUpdate, byteToUpdateWith); resultSetName.updateByte( stringColumnNameToUpdate, byteToUpdateWith); //uses primitive byte resultSetName.updateBytes( intOfPositionToUpdate, byteArrayToUpdateWith); resultSetName.updateBytes( stringColumnNameToUpdate, byteArrayToUpdateWith); //uses an Array of primitive byte resultSetName.updateClob( intOfPositionToUpdate, clobToUpdateWith); resultSetName.updateClob( stringColumnNameToUpdate, clobToUpdateWith); //must be using JDBC 2.0 or above //uses java.sql.Clob resultSetName.updateDate( intOfPositionToUpdate, dateToUpdateWith); resultSetName.updateDate( stringColumnNameToUpdate, dateToUpdateWith); //uses java.sql.Date resultSetName.updateDate( intOfPositionToUpdate, dateToUpdateWith, calendarToUse); resultSetName.updateDate( stringColumnNameToUpdate, dateToUpdateWith, calendarToUse); //JDBC 2.0 and above //uses java.sql.Date and java.util.Calendar
resultSetName.updateDouble( intOfPositionToUpdate, doubleToUpdateWith); resultSetName.updateDouble( stringColumnNameToUpdate, doubleToUpdateWith); //uses primitive double resultSetName.updateFloat( intOfPositionToUpdate, floatToUpdateWith); resultSetName.updateFloat( stringColumnNameToUpdate, floatToUpdateWith); //uses primitive float resultSetName.updateInt( intOfPositionToGet, intToUpdateWith); resultSetName.updateInt( stringColumnNameToGet, intToUpdateWith); //uses primitive int resultSetName.updateLong( intOfPositionToUpdate, longToUpdateWith); resultSetName.updateLong( stringColumnNameToUpdate, longToUpdateWith); //uses primitive long
resultSetName.updateObject( intOfPositionToUpdate, objectToUpdateWith); resultSetName.updateObject( stringColumnNameToUpdate, objectToUpdateWith) //uses java.lang.Object resultSetName.updateObject( intOfPositionToUpdate, objectToUpdateWith, mapToUse); resultSetName.updateObject( stringColumnNameToUpdate, objectToUpdateWith, mapToUse); //uses java.lang.Object //mapToUse is a java.util.Map, // which matches SQL type names to java classes resultSetName.updateRef( intOfPositionToUpdate, refToUpdateWith); resultSetName.updateRef( stringColumnNameToUpdate, refToUpdateWith); //JDBC 2.0 and above //java.sql.Ref specifyies a SQL structured type // value in the database.
resultSetName.updateShort(intOfPositionToUpdate, shortToUpdateWith); resultSetName.updateShort(stringColumnNameToUpdate, shortToUpdateWith); //uses primitive short resultSetName.updateString(intOfPositionToUpdate, stringToUpdateWith); resultSetName.updateString(stringColumnNameToUpdate, stringToUpdateWith); java.sql.Time timeToGet = resultSetName.updateTime( intOfPositionToGet, timeToUpdateWith); java.sql.Time timeToGet = resultSetName.updateTime( stringColumnNameToGet, timeToUpdateWith); //uses java.sql.Time java.sql.Time timeToGet = resultSetName.updateTime( intOfPositionToGet, timeToUpdateWith, calendarToUse); java.sql.Time timeToGet = resultSetName.updateTime( stringColumnNameToGet, timeToUpdateWith, calendarToUse); //JDBC 2.0 and above //uses java.sql.Time and java.util.Calendar
resultSetName.updateTimestamp( intOfPositionToGet, timestampToUpdateWith); resultSetName.updateTimestamp( stringColumnNameToGet, timestampToUpdateWith); //uses java.sql.Timestamp resultSetName.updateTimestamp( intOfPositionToGet, timestampToUpdateWith, calendarToUse); resultSetName.updateTimestamp( stringColumnNameToGet, timestampToUpdateWith, calendarToUse); //JDBC 2.0 and above //uses java.sql.Timestamp and java.util.Calendar
resultSetName.updateAsciiStream(
intOfPositionToUpdate, asciiStreamToUpdate);
//uses java.io.InputStream
resultSetName.updateAsciiStream(
stringColumnNameOfToUpdate, asciiStreamToUpdate);
//uses java.io.InputStream
resultSetName.updateBinaryStream(
intOfPositionToUpdate, binaryStreamToUpdate);
//uses java.io.InputStream
resultSetName.updateBinaryStream(
stringColumnNameOfToUpdate, binaryStreamToUpdate);
//uses java.io.InputStream
resultSetName.getCharacterStream(
intOfPositionToUpdate);
//must be using JDBC 2.0 or above
//uses java.io.Reader
java.io.Reader characterStreamToGet =
resultSetName.getCharacterStream(stringColumnNameOfToGet);
//must be using JDBC 2.0 or above
//uses java.io.Reader
resultSetName.clearWarnings();
//returns all java.sql.Warning for this resultSet
SQLWarning sqlWarning = resultSetName.getWarnings();
//returns the first java.sql.Warning
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