Beginning Microsoft SQL Server 2008 ... - S3 Tech Training

NONCLUSTERED k eyword, 285
non-deterministic UDFs, 423, 425
non-leaf level nodes, 265
non-repeatable reads, locks and, 435–436
normal form, defined, 215
normalization of data
avoiding database complexity, 248–249
Boyce-Codd form, 226
data types, choosing, 249
de-normalization, 247–248
fifth normal form, 227
first normal form (1NF), 219–222
fourth normal form, 226
fundamentals, 216–217
invoicing example. See invoicing database design
(example)
preparation for, 217–218
second normal form (2NF), 222–224
storing information, 249–250
third normal form (3NF), 224–226
normalized databases
computed columns and, 129
defined, 81
Northwind database, 6
NOT FOR REPLICA TION option, 126–127, 457
Notifications tab, operators and, 566
NULL data, 18
NULL values
counting in queries and, 61
IDENTITY columns and, 133
improper use of, 350
ISNULL function and queries, 192–196
outer joins and, 95
UNIQUE constraints and, 172
nullable columns, defined, 71
NULLIF function, 644
NULL/NOT NULL option, 128
numeric fields, query results and, 53
ONLINE option
O
objects
creating, and access, 118
database. See database objects
determining locks and, 441
names in SQL Server, 113–117
names of and Policy Based Management, 584
Object Explorer, 38
OBJECT_ID() function, 317, 623
OBJECT_NAME function, 623
OBJECTPROPERTY function, 623–625
order of, and deadlocks, 446–447
relationships in data source views, 525–526
rights to create, 115
rules for naming (SQL Server), 19
system objects in report model, 523
OLAP system, 279, 294–295
OLE DB
provider, 39
Source Editor, 555–556
OLTP (online transaction-processing), 215, 279,
287, 294–295
On Change – Log: option (P olicy Based Management),
584
On Change: Pre vent option (P olicy Based Management),
584
ON clauses
tables, creating and, 130
triggers and, 453
On Demand option (P olicy Based Management),
584
ON operator, 103
ON option, 118, 282
OnError events (SSIS), 556–557
one-to-one or many relationships, 229
one-to-one relationships, 227–228
one-to-zero, one, or many relationships, 230–231
ONLINE option
ALTER INDEX command, 294–295
CREATE INDEX statement, 281–282
671
Index