Cocoa Touch: Trouble populating 2D array

I am writing an app that uses SQLITE3. I am populating array with a value located in a double-dimensioned array (matrix). When I do this, I am getting an ASSERTION error and I cannot figure out why:

ViewController.h

    matrix1 [25][1000];
    array1 [2000];

ViewController.m

Populating array1 at index matrix[i][j], with the value in matrix1[i][j]

for(int i = 0; i<1000; i++){
for(int j = 0;j<25; j++)
 {
   array1[matrix1[开发者_JAVA技巧matrix1[i][j]];
 }
}

  ...


if(sqlite3_exec(pb_database,[pb_update_string UTF8String]
              ,NULL,NULL,&errormsg)!= SQLITE_OK) {
   NSAssert1(0, @"Error updating tables: ==> %s <==", errormsg);
   sqlite3_free(errormsg);
   NSLog(@"line not update");
}

The error is always on the INSERT/REPLACE statement.

You have several problems:

1. You're using the SQLite C API directly. Don't do this unless you have a very good reason. Use FMDB instead. It will make your life much easier.
2. Your arrays are not the same size. One contains 25,000 elements (25*1000), and the other contains 2,000 elements.
3. Your for loop does nothing. array1[matrix1[matrix1[i][j]]; is not only syntactically incorrect (you're missing a closing square bracket), but it doesn't do anything.
4. Your SQLite code has absolutely nothing to do with your for loop.