flight patterns a deep dive
SQL Server MVP Deep Dives- P3
... dbo.T1(id, val) val) val) val) val) val) val) val) val) val) val) val) val) val) val) val) val) VALUES(2, 'a' ); VALUES(3, 'a' ); VALUES(5, 'a' ); VALUES(7, 'b'); VALUES(11, 'b'); VALUES(13, 'a' ); VALUES(17, ... there are no packages left that fit in the remaining space of an available bin (either because all packages are packed, or they’re all larger than the largest free space) Ideally, all packages have ... the largest available space in any of the current batch of bins, to avoid wasting time on packages that are larger than that C It then ranks the bins by available space D, ranks the packages...
- 40
- 249
- 0
SQL Server MVP Deep Dives- P4
... characteristic of this approach is that you can capture informational RAISERROR statements as they’re executed rather than when a batch ends Listing 13 shows an example Listing 13 Capturing RAISERROR ... that can’t be handled on the server can be passed back to the application .NET has specialized classes that allow applications to capture detailed information about SQL Server exceptions Please ... scripts to create databases CREATE DATABASE TestRecoverySimple GO ALTER DATABASE TestRecoverySimple SET RECOVERY SIMPLE GO CREATE DATABASE TestRecoverySimpleLock GO ALTER DATABASE TestRecoverySimpleLock...
- 40
- 349
- 0
SQL Server MVP Deep Dives- P5
... whitespace, entities, and exact character-for-character representations of data, store your XML data using a character or binary data type such as varbinary(max), varchar(max), or nvarchar(max) The downside ... snowflake schema A snowflake schema is a logical arrangement of tables in a relational database such that the entity relationship diagram resembles a snowflake in shape ... nodes and textual data The element NJ in the example is an element named abbreviation that contains the text data NJ Attribute nodes—Attribute nodes are name/value pairs...
- 40
- 326
- 0
SQL Server MVP Deep Dives- P6
... XPath expression Title /ma:discography/ma:album /ma:discography/ma:album/ma:track Album /ma:discography/ma:album Track /ma:discography/ma:album/ma:track Person /ma:discography/ma:album/ma:track/ma:author ... if you can Char, nchar, varchar, and nvarchar all make sense as candidates for full-text indexing XML also makes sense, because it’s text based, but adds the advantage that markup tags are ignored—only ... linking to get the associated stoplist name and language: SELECT sl.name as StoplistName , sw.stopword as StopWord, lg.alias as LanguageAlias , lg.name as LanguageName, lg.lcid as LanguageLCID FROM...
- 40
- 307
- 0
SQL Server MVP Deep Dives- P7
... Your database may contain a lot of legacy values from the days before better validation at the point of data entry Overall, chances are your database already contains imperfect textual data, which ... database APIs that promise to abstract the programming model away from the underlying database model and its declarative SQL language are always exciting to programmers who want to concentrate ... query language Aficionados always think that a stored procedure represents a contract between consumer and provider Although the database metadata indicates number and type of parameters, and comprises...
- 40
- 442
- 0
SQL Server MVP Deep Dives- P8
... developers have faced a dizzying array of data access interfaces that are designed to make, use, and break connections, as well as manage pools of connections as the need arises Data access interfaces, ... space and update resources, far more than for a regular SQL Server index For a table that holds persons, products, and similar base data, this overhead can still be acceptable, as such tables are ... varchar data, the rules of a SQL collation encompass only 255 characters Using a binary collation gives only a marginal gain over a regular case-insensitive SQL collation Fragments and persons...
- 40
- 458
- 0
SQL Server MVP Deep Dives- P9
... Deprecation feature Deprecated features (continued) Deprecated feature sp_dboption Replacement ALTER DATABASE text, ntext, image data types varchar(max), nvarchar(max), varbinary(max) data types ... timestamp="2008-10-30T08:54:31.689Z"> DATABASEPROPERTY
- 40
- 333
- 0
Tài liệu SQL Server MVP Deep Dives- P10 docx
... the title of database architect is another name for the lead DBA, DBA manager, or DBA project manager DBA DATABASE DESIGNER DBA database designers focus on creating new database schemas They define ... databases, but in many organizations, they are also responsible for managing any applications that access the database In some organizations, the DBA spends more time managing applications than ... DBA specialists are more like medical specialists DBA DATABASE ARCHITECT Think of a DBA database architect as the employee who sees the big picture of data storage and access in an organization,...
- 40
- 403
- 0
Tài liệu SQL Server MVP Deep Dives- P11 pdf
... database audit specification per database per server audit You can create multiple database audit specifications for a database as long as each one uses a separate server audit Creating database ... PRIMasterDBPath MARY filegroup to hold the database MasterDBLogPath metadata This file should never grow beyond MB because it conDatabases tains only database metadata We’ll Database use the logical name ... specifications, as long as each one uses a separate server audit Database audit specification objects You can define the individual audit actions or action groups that you want to audit at the database...
- 40
- 439
- 0
Tài liệu SQL Server MVP Deep Dives- P12 pptx
... can be one of the following data types: varchar, nvarchar, varchar(max), nvarchar(max), varbinary, varbinary(max), text, ntext, image, sql_variant, and xml Now that we’ve used the DBCC command ... this watermark Licensed to Kerri Ross 32 Partitioning for manageability (and maybe performance) Dan Guzman Large tables are a bane to database administrators (DBAs) It takes ... high data availability SQL Server’s table and index partitioning feature is a great way to address these manageability and load/purge/archive issues But you must be aware that partitioning is a fundamental...
- 40
- 370
- 0
Tài liệu SQL Server MVP Deep Dives- P13 ppt
... mirroring Basic info about mirrored databases SELECT DB_NAME(database_id) AS 'database_name', * FROM sys.database_mirroring WHERE database_id > eliminate system databases AND mirroring_state != ... recovery has completed The mirror database can be available much faster than a database restored from backups or SAN snapshots As a DBA responsible for multiple, missioncritical databases, having ... the database, as the database tables that contain the real data in our database are stored within the PRIMARY filegroup and are not affected by the update of this system view WARNING Updating a...
- 40
- 358
- 0
Tài liệu SQL Server MVP Deep Dives- P14 ppt
... turn Batch updates Transactional replication replicates transactions within a transactional context—hence the name transactional This means that if I a batch update, insert, or delete, the batch ... distribution database MAXCMDSINTRAN MaxCmdsInTran is a Log Reader Agent parameter, which will break a large transaction into small batches For example, if you set this to 1,000 and a batch insert ... “SSTB.local” Active Directory domain predefined access, mapped to a SQL Server login and associated database user An audit application installed on the database server is able to recognize that it was...
- 40
- 439
- 0
Tài liệu SQL Server MVP Deep Dives- P15 ppt
... selects fast and your modifications reasonably performant too About the author Alex Kuznetsov has been working with databases for more than a decade He leads a team of database developers and optimizes ... Hyper-V allows you to take a snapshot of a running virtual machine After creating a snapshot, all changes to the virtual machine are written to a separate virtual disk file This is similar to a differencing ... machine is still a machine The same design patterns for physical machines apply to virtual machines and effective management policies are as applicable (perhaps more so) than in a physical environment...
- 40
- 454
- 0
Tài liệu SQL Server MVP Deep Dives- P16 docx
... physical reads that are needed to satisfy the query In a worst-case scenario, you have a cold cache, which means that no data or index pages are in cache In a best-case scenario, you have a hot cache, ... manually enable the CHECKSUM database option on tempdb for added data protection Summary As a DBA, it is a good idea to learn about the tempdb database and how it affects your SQL Server instances’ ... encryption and decryption performance penalty Leaving auto create statistics and auto update statistics on By default, the auto create statistics and auto update statistics database options are turned...
- 40
- 388
- 0
Tài liệu SQL Server MVP Deep Dives- P17 pptx
... Whereas it was able to about 12000 read-ahead pages per second when there was no logical scan fragmentation, it could only about 3000 read-ahead pages per second when logical scan fragmentation was ... If SQL Server cannot make use of read-ahead reads, a table scan or an index scan may have to resort to KB I/O requests When you have a large table to scan, reading one KB page at a time is inefficient ... recovery, transaction logging can be viewed as an optimization that converts random writes to sequential writes Read-ahead is another optimization that attempts to take advantage of sequential reads...
- 40
- 359
- 0
Tài liệu SQL Server MVP Deep Dives- P18 ppt
... Macro to add date parameters and refresh the query RefreshData() strQueryTableName As String strParam1Name As String strParam2Name As String oQuery As QueryTable strFromDate As String strToDate ... perpetually (and reside in the same instance), and reduced performance due to additional I/O operations to maintain the snapshot Database snapshots also apply to the whole database and cannot be targeted ... dimensions facilitate analysis across departmental fact tables For example, an Employee dimension might include employee salary, manager, and hire dates (Human Resource information) as well as sales...
- 40
- 343
- 0
Tài liệu SQL Server MVP Deep Dives- P19 doc
... tracking on a table, the table must have a primary key, and you must first enable the feature at the database level (Books Online also suggests that the database must be at least at a compatibility ... comes mainly from statistics What you’re examining is called a case, which can be interpreted as one appearance of an entity, or a row in a table The attributes of a case are called variables After ... 688 CHAPTER 54 Introduction to SSAS 2008 data mining advance You examine data with advanced mathematical methods, using data mining algorithms, and then you examine patterns and...
- 40
- 378
- 0
Tài liệu SQL Server MVP Deep Dives- P20 ppt
... code to create two databases: a source database and a destination database (optional, but recommended): CREATE DATABASE [SSISIncrementalLoad_Source] CREATE DATABASE [SSISIncrementalLoad_Dest] Now ... data warehouses, the importance of data quality increases as well Establishing ETL processes that can adjust to new data and still provide valid feedback about the quality of that data is vital ... though, a large percentage of rows that may have had acceptable data quality would also be excluded For many data warehouses, that’s not acceptable It’s more likely that these “hard” rules, such as...
- 40
- 358
- 0
Tài liệu SQL Server MVP Deep Dives- P21 pptx
... database audits 378 database availability 449 database backups 331, 451, 453 database best practices 323 database boundaries 20 database collation 235 database context 395 database cursor database ... performance 744 Copy Column transformation 744 Row Count transformation 744 data adapter 307 data architect 12 data archiving 322, 421–422 data attributes 30 data availability 421 data backup strategy ... performance 661 Database Engine Tuning Advisor 385 database failover 455 database files 458 free space 334 database free space 421 database integrity 331 database level 376, 449 audit 365 Database...
- 40
- 316
- 0
Tài liệu SQL Server MVP Deep Dives- P22 ppt
... tabular data 222 Tabular Data Stream 256 tabular format 31 Tabular report 646 talk mode 262 Tang, ZhaoHui 698 target database 729 target partitions 422 target server 268, 355–356 target table 102, 683 ... also SQL Server Management Studio SSPI 267, 646 stack dump 622 stacked bar chart 714 staging table 415, 418, 430 standalone database server 456 standalone queries 541 standard actions 330 Standard ... 354 SSAS algorithms 690 data mining 698 data mining engine 688 database 688 UDM cube 687, 698 See also SQL Server Analysis Services SSAS 2008 698 data mining algorithms 690 data mining analysis...
- 12
- 354
- 0
Tìm thêm: hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc các đặc tính của động cơ điện không đồng bộ đặc tuyến hiệu suất h fi p2 đặc tuyến tốc độ rôto n fi p2 động cơ điện không đồng bộ một pha từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25