sql server dba certification

one, SQL ServerAdvantages:Ease of use, scalability for distributed organizations, data Warehouse functions for decision support, integration with many other server software, good price/performance, etc.Provides flexibility for data management and analysis, allowing units to respond in a rapidly changing environment to gain a competitive advantage. From a data management and analysis perspective, translating

A Introduced Some "super users" with access to data have learned professional Transact-SQL. The convenience of the Report Builder in SQL Server 2005 Report Services (SSRS) extends to the creation of powerful Transact-SQL queries, making it easier for more users to use it. Their ability to consume system resources is b

finished, close the window, pop-up prompts need to restart the program to complete the update, click "Yes". After the program restarts. When the environment is ready, start to get to the topic transplant database. Establishment of a repository (migration Repository) One, connect to Oracle In the connection window to the left of the program, click the Plus button to add a DBA connection to the Oracle database, such as: After the configuration is comp

the use of raw devices for read and write frequent database applications, can greatly improve the performance of the database system. Of course, this is only true if disk I/O is very large and disk I/O is already known as a system bottleneck. If the disk reads and writes are very frequent, so that disk reads and writes becomes the system bottleneck, the adoption of bare devices can greatly improve performance SQL

When your SQL Server database system runs slowly, you may know more or less that you can use SQL Server Profiler (SQL event probe) tool for tracking and analysis. Yes, profiler can be used to capture messages sent to SQL All the

Label:In SQL Server 2005/2008/2008 R2, we can use SQL Server's own pre-editing 200-line feature, which is intended to simplify the use of update, allowing developers, DBAs and some people who do not understand T-SQL are able to directly modify data in the database through a visual interface.In the use of the first 200

, SQL Server discards the use of Fields that are not suitable for index creation: Gender, 0/1, True/false Fields suitable for index creation: ORDERID, UID, etc. 　Take advantage of unique indexes　　A unique index provides SQL Server with information that ensures that a column has absolutely no duplicate valu

As a database administrator for billing applications (DBA), the company's chief information Officer (CIO) often invites me to meet with Sarbanes-oxley reviewers to discuss the security and consolidation of corporate data. Simply put, he wants us to answer a number of questions through the right documents: who has access to our data, how to authorize access, and how we monitor access to prevent someone from invading, logging into data, or doing somethi

First_value and last_value in SQL Server First_value and Last_value Look at the following group of SQL statements: ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 With test as (select ' Le Cola can's blog ' as name,10 as score union ALL select ' Le Cola ' blog ', union ALL SELECT ' Le cola can blog ', union ALL SELECT ' Microsoft Certified '

Tags: DBA file data restore temp table begin SEL Cyclic taint adaptationOriginal: A lightweight backup restore operation that uses database snapshots in SQL Server to complete a database in a test environment In the development or testing environment of the database, often found that there are developers or testers mistakenly delete the table or data situation,fo

words, is the partition 3 merged into Partition 4 or partition 4 merged into Partition 3? This needs to see if our partitioning function defines left or right. If you define a ieft. The partition 3 on the other side is merged into Partition 4 on the other side. Instead, the partition 4 is merged into Partition 3:Summary This article explains how partitioned tables are used in SQL Server. Partitioned

fact tables of the data warehouse usually have one or several hot partitions, The data in these partitions is often updated, and the compression options can be turned off to prevent data compression from causing additional processing load to the data updates on these partitions.CREATE TABLE PartitionedTable (col1 int, col2 varchar(200)) ON PS1 (col1) WITH ( DATA_COMPRESSION = ROW ON PARTITIONS(1), DATA_COMPRESSION = PAGE ON PARTITION(2 TO 4)); If you are setting compression options for an inde

it carefully, triggers can help us deal with some fixed rules of incremental data things, oh yes, SQL Server does not use things very much, but this is common in Oracle. Of course, when it comes to data operations, sometimes triggers are not good if they don't understand.SQL Server I have not seen using cursors, perhaps you would be surprised, when writing code

in a Index seek SELECT * from Sales.SalesOrderHeader WHERE creditcardid = CAST (' 1347 ' as INT) go Summarize By today's blog, I think you've learned not to apply a function directly on a indexed column, or SQL Server scans your entire index instead of the seek operation. When your watch becomes larger and bigger, you will collapse. Translation PostScript This is also when I look at Microsoft

fixed server roles:Described in the order of the lowest-level roles (bulkadmin) to the highest level of the role (sysadmin):Bulkadmin: Members of this server role can run BULK INSERT statements. This statement allows data to be imported from a text file into a SQL Server 2008 database and is designed for domain account

How to solve the problem of invalid isolated users and object names 'xxx' caused by SQL Server database backup and Restoration Time : 2006-11-24 11:36:08 Source : Csdn Author : In the process of using the database, zhiguang often encounters database migration or data migration problems, or sudden database damage. In this case, you need to directly recover from the database backup. However, a problem may

wait statistics 5.1 Batch requests/sec;sql Compilations/sec;sql re-compilations/sec The number of requests, compilations, and recompilation per second that are optimized for reference. 5.2 Lock waits the number of processes waiting for the lock. 5.3 Log write waits number of processes waiting to be written to the log cache The 5.4 page IO latch waits statistics related to page I/O latches. Used to determin

create the index: ORDERID, Full use of unique indexes such as UIDA unique index provides SQL Server with information that ensures that a column has absolutely no duplicate values, and when Query Analyzer finds a record through a unique index, it exits immediately without continuing to look up the indexTable index number not exceeding 6There are no more than 6 table indexes (this rule was developed by Ctrip

unique index provides SQL Server with information that ensures that a column has absolutely no duplicate values, and when Query Analyzer finds a record through a unique index, it exits immediately without continuing to look up the indexTable index number not exceeding 6There are no more than 6 table indexes (this rule was developed by Ctrip's DBA after a trial .

Server discards the use of Fields that are not suitable for index creation: Gender, 0/1, True/false Fields suitable for index creation: ORDERID, UID, etc. Take advantage of unique indexesA unique index provides SQL Server with information that ensures that a column has absolutely no duplicate values, and when Query Analyzer finds a record through a