Datatype mismatch for blob type blackberry - sqlite

Question

I have an exception that Datatype mismatch in this line
byte[] _data = (byte[])row.getBlobBytes(1);
and in the table I have the type of column 2 is BLOB.
public static UrlRsc getContentUrl(String name) {
UrlRsc elementRsc = null;
try {
Statement statement = DB
.createStatement("SELECT * FROM table where"
+ " Name='"
+ name + "'");
statement.prepare();
Cursor cursor = statement.getCursor();
Row row;
while (cursor.next()) {
row = cursor.getRow();
byte[]_data;
_data = row.getBlobBytes(1);
}
statement.close();
cursor.close();
} catch (DatabaseException dbe) {
System.out.println(dbe.toString());
} catch (DataTypeException dte) {
System.out.println(dte.toString());
}
return elementRsc;
}
Can any one help me ?

Answer 1

Hi i am using following code for save image in my local database and i got success. i just posted my 3 methods
Note: When i am inserting image into data base i changed that image in byte array then only i can save into that table
1)Table creation 2) table insertion 3)image retrieving from table
ContactImage_table creation
public ContactImageTableCreation(){
try{
Statement stmt=DATABASE.createStatement("create table if not exists 'ContactImage_table'(ID 'TEXT',image 'blob',NodeId 'TEXT')");
stmt.prepare();
stmt.execute();
stmt.close();
}catch(Exception e){
System.out.println(e.getMessage());
}
}
Insert data into ContactImage_table
public void ContactImageTableInsertion(){
try{
Statement st=DATABASE.createStatement("insert into ContactImage_table (ID,Image,NodeId)values(?,?,?)");
st.prepare();
st.bind(1, "101");
st.bind(2, BYTE_ARRY);
st.bind(3,"103");
st.execute();
st.close();
}catch (Exception e) {
System.out.println(e.getMessage());
}
}
Retrieving data from ContactImage_table
public ContactImageTableDataRetriving(){
try{
Statement st=DATABASE.createStatement("select * from ContactImage_table");
st.prepare();
Cursor c=st.getCursor();
Row r;
int i=0;
while(c.next()){
r=c.getRow();
i++;
// ContactImageObject is a wrapper class for data handling
contactImageObj=new ContactImageObject();
contactImageObj.setId(r.getString(0));
byte[] decoded=r.getBlobBytes(1);
EncodedImage fullImage = EncodedImage.createEncodedImage(decoded, 0, decoded.length);
Bitmap b=fullImage.getBitmap();
contactImageObj.setImage(b);
// System.out.println("Successfully retrived");
if(i==0){
// System.out.println("No Records");
}
}
st.close();
}catch (Exception e) {
// System.out.println(e.getMessage());
}
}
just cross check your code with this code snippet hope you will get resolve all the best