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Object Browser, 60, 60
Object column for transaction locks, 503
ODBC managed provider classes, 138
Odbc namespace, 141
OdbcCommand class, 139
OdbcCommandBuilder class, 140, 398
OdbcConnection class, 139
OdbcDataAdapter class, 140
OdbcDataReader class, 140
OdbcParameter class, 140
ODBCParameterCollection class, 140
OdbcTransaction class, 140, 236, 486
OLE DB managed provider classes, 138
OleDb namespace, 12-13, 141
OleDbCommand class, 13, 139
OleDbCommandBuilder class, 140, 398
OleDbConnection class, 12, 14-15, 139, 200
OleDbConnectionAccess.cs program, 13-14
OleDbConnectionOracle.cs program, 15-17
OleDbDataAdapter class, 140
OleDbDataReader class, 13, 140
OleDbParameter class, 140
OleDbParameterCollection class, 140
OleDbTransaction class, 140, 236, 486
one-to-many relationships, 40
OnInit method, 524
Online Community link, 18
Open method
in Connection, 190
in mySqlConnection, 378
in SqlConnection, 8, 147, 188, 212
Open Query File dialog box, 62
OPEN statement, 104
Open value, 195
opening
cursors, 104
database connections, 190-192
files, 62
SqlConnection objects, 8
OPENXML function, 596-599, 599
optimistic concurrency, 375
OR operator, 71-72, 72
Oracle databases, connecting to, 14-17
ORDER BY clause, 72-73, 73-74
Order Details table
contents of, 47, 47
foreign keys for, 356
primary keys for, 355
Orders table
contents of, 45-47, 46
primary keys for, 354
ordersDA objects, up, 431-433
ordersDT objects with DataRow objects
adding, 434
deleting, 435
pushing changes in, 435-437
updating, 434
Ordinal property, 350
Original value, 376
OriginalRows value, 369, 456
Outer joins, 80
OuterXml property, 601
Overline property, 538
Owner column for transaction locks, 503
OwnerDocument property, 601
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