Showing posts with label MySql. Show all posts
Showing posts with label MySql. Show all posts

Saturday, October 10, 2015

32-bit and 64-bit CPU

32-bit and 64-bit CPU


If you are CCTV technicians you need to know the two main categories of processors are 32-bit and 64-bit. The type of processor a computer has not only affects it's overall performance, but it can also dictate what type of software it uses.
32-bit processor
The 32-bit processor was the primary processor used in all computers until the early 1990s. Intel Pentium processors and early AMD processors were 32-bit processors. The Operating System and software on a computer with a 32-bit processor is also 32-bit based, in that they work with data units that are 32 bits wide. Windows 95, 98, and XP are all 32-bit operating systems that were common on computers with 32-bit processors.
64-bit processor
The 64-bit computer has been around 1961 when IBM created the IBM 7030 Stretch supercomputer. However, it was not put into use in home computers until the early 2000s. Microsoft released a 64-bit version of Windows XP to be used on computers with a 64-bit processor. Windows Vista, Windows 7, and Windows 8 also come in 64-bit versions. Other software has been developed that is designed to run on a 64-bit computer, which are 64-bit based as well, in that they work with data units that are 64 bits wide.

Differences
The main difference between 32-bit processors and 64-bit processors is the speed they operate. 64-bit processors can come in dual core, quad core, and six core versions for home computing (with eight core versions coming soon). Multiple cores allow for increase processing power and faster computer operation. Software programs that require many calculations to function operate faster on the multi-core 64-bit processors, for the most part. It is important to note that 64-bit computers can still use 32-bit based software programs, even when the Windows operating system is a 64-bit version.
Another big difference between 32-bit processors and 64-bit processors is the maximum amount of memory (RAM) that is supported. 32-bit computers support a maximum of 3-4GB of memory, whereas a 64-bit computer can support memory amounts over 4 GB. This is important for software programs that are used for graphical design, engineering design or video editing, where many calculations are performed to render images, drawings, and video footage.

One thing to note is that 3D graphic programs and games do not benefit much, if at all, from switching to a 64-bit computer, unless the program is a 64-bit program. A 32-bit processor is adequate for any program written for a 32-bit processor. In the case of computer games, you'll get a lot more performance by upgrading the video card instead of getting a 64-bit processor.

In the end, 64-bit processors are becoming more and more commonplace in home computers. Most manufacturers build computers with 64-bit processors due to cheaper prices and because more users are now using 64-bit operating systems and programs. Computer parts retailers are offering fewer and fewer 32-bit processors and soon may not offer any at all.

Saturday, September 6, 2014

What’s New in SQL Server 2014 since SQL Server 2005

Whats New in SQL Server 2014 since SQL Server 2005
PERFORMANCE & SCALE
o        In-Memory OLTP
o        Enhanced In-Memory ColumnStore for DW
o        Support for 640 logical proc. & 4 TB memory
o        Support to 15,000 partitions
o        Resource Governor IO governance
o        Buffer Pool Extension to SSDs
o        Query optimization enhancements
o        SysPrep at cluster level
o        Predictable performance with tiering of compute, network, and storage with Windows Server 2012 R2
o        Data Compression with USC-2 Unicode support
o        Backup Compression

HIGH AVAILABILITY
o        SQL Server AlwaysOn
o        Database Mirroring
o        Failover Clustering
o        Database Snapshots
o        Delayed Durability
o        Recovery Advisor
o        Windows Server Core
o        Live Migration
o        Online Operations
o        Clustered Shared Volume support, VHDX support (Windows Server 2012 R2)
o        Manage on-premises and cloud apps (System Center 2012 R2)

SECURITY
o        User-Defined Server Roles
o        Default Schema for Groups
o        SQL Server Audit
o        Transparent Data Encryption
o        Extensible Key Management
o        Standards-based Encryption
o        SQL Server Fine-grained Auditing
o        Enhanced separation of duty
o        CC certification at High Assurance Level
o        Backup encryption support

PROGRAMMABILITY
o        SQL Server Data Tools
o        Local DB runtime (Express)
o        Data-tier Application Component project template
o        Data-Tier Application Framework (DAC Fx)
o        Query optimization enhancements
o        Interoperability support (ADO.NET, ODBC, JDBC, PDO, ADO APIs and .NET C/C++, Java, Linux, and PHP platforms)

T-SQL ENHANCEMENTS
o        Enhanced support for ANSI SQL standards
o        Transact-SQL Static Code Analysis tools
o        Transact-SQL code snippets
o        Intellisense

DATA SUPPORT
o        FILESTREAM data type
o        FileTable built on FILESTREAM
o        Remote Blob Storage with SharePoint 2010
o        Spatial data support
o        Full Text Search for unstructured files
o        Statistical Semantic Search
o        Large user-defined data types

PROGRAMMABILITY SUPPORT
o        Support for LINQ and ADO.NET Entity Framework
o        CLR Integration and ADO.NET Object Services

MANAGEABILITY
o        Distributed Replay
o        Contained Database Authentication
o        System Center Management Pack for SQL Server 2012
o        Windows PowerShell 2.0 support
o        Multi-server Management with SQL Server Utility Control Point
o        Data-Tier Application Component
o        Multi-server Management with SQL Server Utility Control Point
o        Data-Tier Application Component
o        Policy-Based Management
o        SQL Server Performance Data Collector
o        Query enhancements
o        SMTP mail for secure DB email w/o Outlook

ACCESS ANY DATA
o        Power Query
o        Windows Azure HDInsight Service
o        Analytics Platform System (PDW V2)
o        Mash up data from different sources, such as Oracle & Hadoop

INSIGHTS WITH FAMILIAR TOOLS
o        Power BI in Office 365
o        Power Map for Excel
o        Mobile interfaces for Power BI

COMPLETE BI SOLUTION
o        SQL Server BI Edition
o        StreamInsight
o        BI Semantic Model
o        SQL Server Data Tools
o        BI Development Studio
o        Microsoft Visual Studio-based report dev tools
o        Change Data Capture for Oracle

ANALYSIS SERVICES
o        Import PowerPivot models into Analysis Services
o        Enhancements on productivity, performance
o        Cube design tools, block computations, and write-back to MOLAP

REPORTING SERVICES
o        Power View
o        Configurable reporting alerts
o        Reporting as SharePoint Shared Service
o        Report Builder 3.0
o        Report Designer
o        Report Manager

DATA QUALITY SERVICES
o        Build organizational knowledge base
o        Connect to 3rd party data cleansing providers

MASTER DATA SERVICES
o        Master Data Hub
o        Master Data Services Add-in for Microsoft Excel

INTEGRATION SERVICES
o        Graphical tools in SSIS
o        Extensible object model
o        SSIS as a Server
o        Broader data integration with more sources; DB vendors, cloud, Hadoop
o        Pipeline improvements
o        Persistent lookups
o        High-performance connectors
o        Data profiling tool

HYBRID CLOUD SOLUTIONS
o        Simplified backup to Windows Azure
o        Support for backup of previous versions of SQL Server to Windows Azure
o        Cloud back-up encryption support
o        Simplified cloud Disaster Recovery with AlwaysOn replicas in Windows Azure VMs

EASY ON-RAMP TO THE CLOUD
o        New Windows Azure Deployment UI for SQL Server
o        Larger SQL Server VMs and memory sizes now available in Windows Azure
o        DAC enhancements: Import/export with Windows Azure SQL Database

COMPLETE AND CONSISTENT FROM ON-PREM TO CLOUD
o        SQL Server Data Tools
o        License Mobility (with SA)
o        Resource Governor enhancements
o        Snapshot backups to Windows Azure via SQL Server Management Studio

This list also includes some technologies that work together with SQL Server such as Azure, System Center, Excel 2013, Power BI for Office 365 and others.

Monday, March 31, 2014

Difference between SQL SERVER 2000,2005,2008 and 2012

SQL SERVER 2000:
1.Query Analyser and Enterprise manager are separate.
2.No XML datatype is used.
3.We can create maximum of 65,535 databases.
4.Cant compress the tables and indexes.

5.Datetime datatype is used for both date and time.
6.No varchar(max) or varbinary(max) is available.
7.No table datatype is included.
8.No SSIS is included.
9.CMS (Cenntral Management Server) is not available.
10.PBM (Policy Based Management) is not available.
11.High Availability Clustering or Log Shipping require Enterprise Edition. Expensive hardware.
SQL SERVER 2005:
1.Both are combined as SSMS(Sql Server management Studio).
2.XML datatype is introduced.
3.We can create 2(pow(20))-1 databases.
4.Exception Handling
5.Varchar(Max) data type
6.DDL Triggers
7.DataBase Mirroring
8.RowNumber function for paging
9.Table fragmentation
10.Full Text Search
11.Bulk Copy Update
12.Cant encrypt the entire database.
13.Can Compress tables and indexes.(Introduced in 2005 SP2)
14.Datetime is used for both date and time.
15.Varchar(max) and varbinary(max) is used.
16.No table datatype is included.
17.SSIS is started using.
18.CMS is not available.
19.PBM is not available.

20. High Availability Clustering, Database Mirroring or Log Shipping available in Standard Edition. Database Mirroring can use cheap hardware. 

SQL SERVER 2008:
1.Both are combined as SSMS(Sql Server management Studio).
2.XML datatype is used.
3.We can create 2(pow(20))-1 databases.
4.Exception Handling
5.Varchar(Max) data type
6.DDL Triggers
7.DataBase Mirroring
8.RowNumber function for paging
9.Table fragmentation
10.Full Text Search
11.Bulk Copy Update
12.TDE (Transparent Data Encryption) to encrypt the entire database introduced in 2008.
13.Can compress tables and indexes.
14.Date and time are separately used for date and time datatype,spatial and timestamps with internal timezone is used.
15.Varchar(max) and varbinary(max) is used.
16.Table datatype introduced.
17.SSIS avails in this version.
18.Central Management Server(CMS) is Introduced.
19.Policy based management(PBM) server is Introduced.
20. Auditing - monitoring of data access.
21. Resource Governor. Restrict users or groups from consuming high levels or resources.
22. Activity monitor: consolidates this information by detailing running and recently executed processes, graphically.
23. Backup compression.


SQL Server 2008 to SQL Server R2• Backup compression is available in R2 standard (was only in Enterprise)
• SQL Server 2008 R2 Express Edition database size limit increased to 10 GB (from 4GB)
• PowerPivot for SharePoint introduced for loading, querying, and managing PowerPivot workbooks that you publish to a SharePoint 2010 server
• PowerPivot for Excel is used to assemble and create relationships in large amounts of data from different sources, and then use that data as the basis for PivotTables and other data visualization objects that support data analysis in Excel.
• Utility Explorer introduced for centralized management of managed SQL instances.
• Master Data Services introduced to manage master (reference) data and maintain an auditable record of that data as it changes over time.
• Enhanced security to prevent an authentication relay attack.


SQL SERVER 2012:




1.The SQL Server 2012 uses 48 bit precision for spatial
2.In SQL server 2012 has unlimited concurrent connections
3.By default it supports 15,000 partitions
4.Available new string functions CONCATE and FORMAT
5.Available new conversion  functions are PARSE ,TRY_CONVERT,TRY_PARSE
6.
Microsoft.SqlServer.Dac and Microsoft.SqlServer.Dac.Extensions are introduced to perform  operations on Packages.

SQL Server 2008R2 to 2012• Inclusion of Visual Studio 2010 (BI edition)
• AlwaysOn technology – allowing automatic replication and switching to mirrored database/server in the event of problems
• In most instances, the performance is 10 times faster than the predecessor (Microsoft claim)
• Buffer rate is high in SQL Server 2012 because of data compression.
• Data visualization tool is available in SQL Server 2012.This allows snapshots of data.
• Support for persistent computed columns and extra geographical approach is possible with spatial features in SQL Server 2012.
• Allows for warm Service Patch patching – meaning SQL or server does not have to be rebooted/restarted to apply patches
• New ‘Contained Databases’ feature allowing easier movement of database instances between servers
• New ‘ColumnStore’ indexes – which turn indexes 90 degrees in use (instead of one index per row, you get multiple column indexes per row which has a major impact on performance)
• New TRY_CONVERT T-SQL command, which will perform data type conversion, but will NULL rather than error where conversion fails.
• New OFFSET/FETCH command which allows automatic capture of pages of rows (like SELECT TOP 90 * from…, but gives a starting row number for the page)
• Redesign of SQL Server management studio – providing new features, better intellisense, new viewing tools and cleaner interface
• Custom user server roles – meaning you can define roles with specific access (such as BI data reader) and assign these custom roles to defined users (therefore faster user maintenance)
• New virtual Windows FileTable commands in T-SQL lets you manage a folder like a table of documents, but still have external control over the contents: UPDATE C:\Docs\*.* SET ReadOnly = 1 WHERE Author = ‘Bob’ AND Created < ’20100101′;)
• NEGATIVE – SQL Server Management Studio will no longer run on XP. Needs Windows Vista, 7 or 8.
• NEGATIVE – SQL Server is no longer licenced on server, but either CALS or Cores in server CPU which could increase costs for large user connection scenarios.
• NEGATIVE – AWE is no longer supported, meaning your SQL Server instance on x86 with 32GB of RAM is only going to be able to use 4GB. Note – SQL now designed to run on 64bit hardware.

During the CCTV / Access Management Software installation the mail Database is on SQL based. So you must know Difference between SQL SERVER 2000,2005,2008 and 2012.