Tài liệu Expert SQL Server 2008 Development- P10 ppt

 INDEX  T STLength( ) method, 313 stored procedures advantages of, 196–197 table hints, 241 controversy over, 196 tables, classes compared to, 13–14 for data API, 18 TDD (Test-Driven Development) methodology, 23, 196 data transactions, effects on, 97–98 described, 196 technical limitations, 294–296 identifying, 116 tempdb database, 137–138 optional query parameters, handling, 205 temporal data. See also dates; intervals; times output characteristics, 191 categories of, 322 parameter passing, 230–232 data types, 322 performance testing, effect on, 70–71 durations, 365–366 security, 104, 112–114, 230–232 importance, 321 signing using certificates, 114–116 querying, 269 static, 197 time zone issues, 341–344, 346 STPointFromWKB( ) method, 297 tessellated, 313 street data, accessing, 387 Test-Driven Development (TDD) methodology, 23, 196 STRelate( ) function, 312 stress testing, 36 testing string encoding, 395 performance string-handling functions, 183–185 additional information, 68 String.IndexOf( ) method, 183–184 counters, 61–62 strong naming, 177 Data Collector, 65, 67 STTouches( ) method, 294 DMVs, 62–63 STxxxxFromWKB( ) method, 297 extended events, 64–65 su command, UNIX, 102 granular analysis, 69, 71 subordinate nodes, 372 identifying problems, 71 Subversion, 237 importance, 57–58 SUSER_NAME function, 109 process, 68 SymKey1 key, 130 profiling server activity, 59–61 symmetric keys, 124, 126–127, 130–133, 140 running, 69–71 sysadmin role, 134 software sys.certificates view, 116 benefits, 58 sys.crypt_properties view, 116 best practices, 36–39 sys.dm_database_encryption_keys view, 137 databases, shortage of, 49 sys.dm_db_index_operational_stats DMV, 63 reasons for, 56 sys.dm_db_index_physical_stats DMV, 63 stored procedures and, 196 sys.dm_db_index_usage_stats DMV, 63 techniques for, 55–56 sys.dm_exec_cached_plans DMV, 200 testability, 20–21 sys.dm_exec_query_stats DMV, 63 timing, 55 sys.dm_exec_sql_text function, 148, 200 types of, 49–52, 55–58 sys.dm_os_performance_counters DMV, 43, 63 volume of tests needed, 57–58 sys.dm_os_wait_stats DMV, 63 thumbprint, certificate. See certificates sys.dm_os_waiting_tasks DMV, 63 TIGER/Line data, 387 sys.dm_tran_locks DMV, 63 time datatype, 323 sys.spatial_reference_systems system table, 292 time zones, effects on data, 341–344, 346 sys.sysusers table, 42 time-based data. See temporal data System.Data.SqlTypes .NET namespace, 160– 161 times. See also calendar tables calculations on, 329, 331–336 System.DateTime string formatting, 326 constraining, 347 431 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.  INDEX Universel Temps Coordonné (UTC), 341–344 times (cont.) UNSAFE permission set, 163 default, 324 UPDATE statement, 152 input formats, 323–324 UPDATE trigger, 31 querying, 326–329, 337–341, 362, 364–365 updateable cursors, 243 ToString method, 326 updates, causing cycles, 405 touching, 294 US geographical data, accessing, 387 tracing SQL Server exceptions, 85 User Error Message events, 85 transactional locks, 250 user interface data, 12 transactions USER_NAME function, 109 doomed, 100 user-defined functions (UDFs), 191 exceptions and, 96–99 users rolling back, 96–100 creating, 103–104 stored procedures and, 97–98 defined, 103 transparent data encryption, 136–139 impersonating, 102–104, 107–110 trees proxy, 114 defined, 372 use of, 103–104 overview, 371 UTC (Universel Temps Coordonné), 341–344 triggers, 266 UTM (Universal Transverse Mercator) grid coordinates, 290, 292 Triple DES, 130 trustworthy databases marking, 175 security ramifications, 175  V turning off, 175 try block, defined, 87 valid time component, 322 try/catch exception handling, 87–92, 100 validating input, 40–42 T-SQL, versus SQLCLR, 178–184 varchar datatype, 34 T-SQL function, 40, 137 varchar type, 34 T-SQL stored procedures, 6 Visual SourceSafe, 237 TSQLUnit unit testing framework, 52 Visual Studio Team System 2008, 69 two-part naming, 105  W  U WAITFOR command, 252 UDFs (user-defined functions), 191 warnings, 79, 85 undirected edges, 371 web services, 18 undirected graphs, 372 Well-Known Binary (WKB) format, 296–297 unexpected behavior, 45 Well-Known Text (WKT) format, 290, 296–297 UNION ALL query, 303 white box testing, 49–50, 52 UNION query, 36, 303 wildcard searches with HMAC substrings, 153– 157 unit testing advantages of, 54 WindowsIdentity class, 102 limits of, 51 WITH TIES argument, 308 uses of, 50, 55 WKB (Well-Known Binary) format, 296–297 unit testing frameworks WKT (Well-Known Text) format, 290, 296–297 advantages of, 52 wrapper methods/classes debug assertions, 52 advantages of, 161, 163 tips for using, 52–54 example of, 162–163 variety, 52 uses for, 161, 163 Universal Transverse Mercator (UTM) grid coordinates, 290, 292 Writes column, 59 432 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.  INDEX 433  X x coordinate, 312 XACT_ABORT setting, 77–78, 98–99 XACT_STATE function, 100 XandY table, 37, 39 XML format documents, 185, 263 XML serialization, 185–186 XP (extreme programming), 23, 55  Y y coordinate, 312 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. . 40–42 T -SQL, versus SQLCLR, 178–184 varchar datatype, 34 T -SQL function, 40, 137 varchar type, 34 T -SQL stored procedures, 6 Visual SourceSafe, 237 TSQLUnit. causing cycles, 405 touching, 294 US geographical data, accessing, 387 tracing SQL Server exceptions, 85 User Error Message events, 85 transactional locks, 250