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In SQL SERVER you can specify data types (integer, nvarchar, Boolean etc) which puts in data type checks in SQL SERVER rather than through application programs. Rule 11: Distribution independence. "A relational DBMS has distribution independence." SQL SERVER can spread across more than one physical computer and across several networks; but from application programs it has not big difference but just specifying the SQL SERVER name and the computer on which it is located. Rule 12: Non-subversion Rule. "If a relational system has a low-level (single-record-at-a-time) language, that low level cannot be used to subvert or bypass the integrity Rules and constraints expressed in the higher level relational language (multiple-records-at-a-time)." In SQL SERVER whatever integrity rules are applied on every record are also applicable when you process a group of records using application program in any other language (example: - C#, VB.NET, J# etc...). Reader’s can see from the above explanation SQL SERVER satisfies all the CODD rules, some database guru’s consider SQL SERVER as not truly RDBMS, but that’s a matter of debate. Is access database a RDBMS? Access fulfills all rules of CODD, so from this point of view yes it’s truly RDBMS. But many people can contradict it as a large community of Microsoft professional thinks that access is not. What’s the main difference between ACCESS and SQL SERVER? As said before access fulfills all the CODD rules and behaves as a true RDBMS. But there’s a huge difference from architecture perspective, due to which many developers prefer to use SQL SERVER as major database rather than access. Following is the list of architecture differences between them:- 69
√ Access uses file server design and SQL SERVER uses the Client / Server model. This forms the major difference between SQL SERVER and ACCESS. 70 Note: - Just to clarify what is client server and file server I will make quick description of widely accepted architectures. There are three types of architecture:- • Main frame architecture (This is not related to the above explanation but just mentioned it as it can be useful during interview and also for comparing with other architectures) • File sharing architecture (Followed by ACCESS). • Client Server architecture (Followed by SQL SERVER). In Main Frame architecture all the processing happens on central host server. User interacts through dump terminals which only sends keystrokes and information to host. All the main processing happens on the central host server. So advantage in such type of architecture is that you need least configuration clients. But the disadvantage is that you need robust central host server like Main Frames. In File sharing architecture which is followed by access database all the data is sent to the client terminal and then processed. For instance you want to see customers who stay in INDIA, in File Sharing architecture all customer records will be send to the client PC regardless whether the customer belong to INDIA or not. On the client PC customer records from India is sorted/filtered out and displayed, in short all processing logic happens on the client PC. So in this architecture the client PC should have heavy configuration and also it increases network traffic as lot of data is sent to the client PC. But advantage of this architecture is that your server can be of low configurations.
Page 1 and 2: Beware of duplicate interview quest
Page 3 and 4: Titles written by Shivprasad Koiral
Page 5 and 6: From the Author First thing thanks
Page 7 and 8: The Table of contents is different
Page 9 and 10: What is NTILE()? ..................
Page 11 and 12: What are basic methods of “Dataad
Page 13 and 14: How can we import and export using
Page 15: (DB)How can we remove the Fragmente
Page 19 and 20: √ This book goes in best combinat
Page 21 and 22: un through those surprising questio
Page 23 and 24: 56 Figure :- 0.1 IT Company hierarc
Page 25 and 26: √ When it comes to maintenance pr
Page 27 and 28: √ Do not mention your salary in C
Page 29 and 30: √ Are you looking for onsite oppo
Page 31 and 32: 64 1. Database Concepts What is dat
Page 33 and 34: Many DBMS companies claimed there D
Page 35: 68 database vendors where providing
Page 39 and 40: 72 Figure 1.3:- Client Server Archi
Page 41 and 42: 74 √ There are lots of third part
Page 43 and 44: 76 defined types can now be written
Page 45 and 46: 78 √ Query analyzer is now replac
Page 47 and 48: 80 √ One-to-many Figure 1.5 : - O
Page 49 and 50: 82 Figure 1.7 : - Many-to-Many Rela
Page 51 and 52: 84 Figure 1.10 :- Normalized custom
Page 53 and 54: (DB) Can you explain Fifth Normal F
Page 55 and 56: 88 Twist: - What’s the relationsh
Page 57 and 58: 90 Figure 1.18 : - MDF and LDF file
Page 59: (DB)Can we have a different collati
Page 62 and 63: INSERT INTO ColorTable (code, color
Page 64 and 65: LEFT OUTER JOIN Left join will disp
Page 66 and 67: What’s the difference between DEL
Page 68 and 69: Figure 2.3 : - “_” operator in
Page 70 and 71: Figure 2.5 : - Union All in action
Page 72 and 73: DECLARE provincecursor CURSOR FOR S
Page 74 and 75: Figure 2.7 : - Key Set Data DYNAMIC
Page 76 and 77: What is ROLLUP? Figure 2.9 : - Grou
Page 78 and 79: What is CUBE? Figure 2.11: - Subtot
Page 80 and 81: inner join sales.salesterritory on
Page 82 and 83: Figure 2.16: - WITH TIES in action
Page 84 and 85: Select * from PURCHASEORDERHEADERCT
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What is UNPIVOT? It’s exactly the
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What is NTILE()? Figure 2.21 :- DEN
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√ If there is an error in UDF its
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Assembly_files system tables have t
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go EXEC sp_configure 'clr enabled'
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Safe Access sandbox This will be th
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What is Syntax for creating a new a
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so that .NET threads do not consume
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Following are the checks done while
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Are two version of same assembly al
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Note: - If the assembly is referenc
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So what does that mean? Well if you
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But for “out” types of paramete
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Let start step1 go to visual studio
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You can see in the below figure you
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After deploying the solution you ca
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Figure 3.16 :- Function source code
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There are two types of triggers :-
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ALTER PROCEDURE ps_NonFatal_INSERT
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√ Data Adapter (This object acts
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√ ExecuteNonQuery :- Executes the
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objOLEDBCommand = New OleDbCommand(
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ADO.NET provides the SqlCommand obj
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Third step is to create the Adapter
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RemoveAt Remove’s a “DataRow”
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Relation’s can be added between
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√ Commit or roll back the transac
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√ Subscriptions: - Subscriptions
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Figure 5.3 : - Detail architecture
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using Microsoft.SqlServer.Notificat
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6. Service Broker What do we need Q
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√ Further you have to assign thes
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GO -- Create Message contract what
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Figure 6.3 : - Output of the above
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7. XML Integration Note: - In this
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What is a valid XML? If XML is conf
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' After you have created the schem
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SELECT * FROM xmltable WHERE TestXm
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BATCHES = ENABLED, WSDL = DEFAULT,
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Twist: - What is Star Schema Design
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the dimension table and all other t
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Transformation:- This process can a
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Figure 8.6 : - Data Warehouse and D
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Figure 8.7 : - After executing BCP
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Once you have changed the FMT file
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√ Using BCP and Bulk imports we c
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√ Transactions are mainly batch t
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and ROLAP. However, unlike MOLAP an
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(DB)What is MDX? MDX stands for mul
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While data is loading in database
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√ Requirement phase: - System Req
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Figure 8.16 : - NorthWind Snapshot.
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Figure 8.19 : - Select Analysis Ser
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After that its time to define view.
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We had said previously fact table i
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This screen defines measures. Figur
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Figure 8.29 : - Deploy Solution Fig
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Figure 8.33: - Final look of the CU
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Figure 8.35: - Product Sales by cou
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on number of tickets sold , but if
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Figure 8.36 : - Data mining life Cy
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Based on the above data we have mad
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Figure 8.40 : - Bayesian Sample Dat
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Figure 8.41 : - Artificial Neuron M
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You can see neuron has calculated t
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√ Microsoft Decision Trees Algori
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Figure 8.46 : - Data mining and Dat
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9. Integration Services/DTS Note: -
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Figure 9.3 : - Specify the Data Sou
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Next step is to specify option from
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Figure 9.7 : - Successful execution
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√ Container: - Container logicall
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√ Whenever “Bonus” field is n
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Data Flow: - Data flow say how the
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Figure 9.19 : - Connection Manager
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Figure 9.22 : - Specify Connection
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Figure 9.25 : - Specify Destination
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Note: - You can see various data fl
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Reporting Server In big multi-natio
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Figure 10.2 : - Publisher, Distribu
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√ Read-only data are the best can
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Figure 10.4 : - Merge Replication M
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Figure 10.5 : - Transactional Repli
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Figure 10.8 : - Specify Type of rep
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Figure 10.12 : - Replication in Act
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Figure 11. 1: - Welcome reporting s
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Figure 11.3: - Specify provider Aft
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Figure 11.5 : - SQL Query Figure 11
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Figure 11.8 : - Final view of the r
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“Reporting Services” is not a s
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12. Database Optimization What are
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Figure 12.2 : - Page split for Inde
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Figure 12.3 : - Clustered Index Arc
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If we make non-clustered index on a
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DECLARE @ID int, Note: - Before rea
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Extents Scanned The number of exten
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Speed issues occur because of two m
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Figure 12.12: - sp_updatestats in a
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Figure 12.13 : - Create New Trace F
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In order to go to “Database Tunin
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√ Start performing analysis on al
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Figure 12.22 : - Reports by Advisor
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Figure 12.24 : - Largest Cost Query
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Nested Join If you have less data t
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Nested joins best suited if the tab
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13. Transaction and Locks What is a
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Brushing up the syntaxes To start a
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Figure 13.3: - Locking implemented
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√ Step3:- While “Mr. X” is vi
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√ Step3:- “Mr. X” wants to en
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the “Update” locks to “Exclus
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√ Bulk Update locks:-Bulk Update
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What are “Lock” hints? This is
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