storing time series data in sql server

Misunderstanding #21: database corruption can be solved by restarting SQL Server or Windows, or attaching and detaching a database Error No operation in SQL Server can repair data corruption. Damaged pages must be repaired or restored through some mechanism, but they mus

Label:first, write it in front.Today is a double break again! Life is still going on, and when you stop, it may suddenly seem uncomfortable. Sometimes, see a thing, you will find the original in this society, excellent people a lot, silentlyThere are many people who struggle hard. Friday morning on time to work, buy breakfast, to the company's restaurant to eat breakfast, I met a person, maybe twice I will not pay attention, but every

1. Database compositionThe storage structure of the database is divided into logical storage structure and physical storage structure.◊ Logical Storage structure: A description of the nature of the database is composed of information. SQL Server's database is more than just storage of data, and all information related to data processing operations is stored in th

SQL Server synchronizes updates to remote databases in real time. In this case, you must update TableB at the same time in the update table TableA (Database DatabaseA in server ServerA 172.16.8.100) (Database DatabaseB in server S

SQL Server queries all Sundays within a period of time, and SQL Sunday /* Query all Sundays within a period of time @ startdate start date @ enddate end date */declare @ startDate datetimedeclare @ endDate datetimedeclare @ week varchar (20) set @ startDate = '000000' set @

As we all know, in C #, it is easy to use the split method to divide a string into an array with the specified characters, but in T-SQL, it is .... In my project, there are the following applications: Read a batch of data in batches, then process the data in each row. After processing, return the processed ID and the failed ID to the database, this involves a bat

stored with this type of character can store characters in multiple character sets. When the length of a column changes, you should use the nvarchar character type, where you can store up to 4,000 characters. When the length of a column is fixed, you should use the Nchar character type, and you can store up to 4,000 characters at this time. When you use the Ntext data type, the column can store more than 4

SQL server calculates the value of a field in the database, removes duplicate data, and SQL server Sometimes, some duplicate data exists in the database, but we want to calculate the value of a field, and we need to remove the dup

Preface Over the past few days, I have been eager to write server programs. All series of articles have been updated slowly. Sorry :) Note: This series of articles is limited to learning and communication and focus on the process. Due to the involvement of companies, source code download is not provided. Sorry !! But please rest assured that I will post the core

]. [Product]3. Using an expression in query results select [ , [ productname " , [ unitprice ] * 2 as Doubleunitprice from [ dbo ". [ product ]The AS keyword indicates that the expression specifies a field name for display, where as is an optional parameter, or it can not be used.4. Display partial Query ResultsWhen a data table contains a large amount of data, you can limit the number

1 overviewThis article provides a brief analysis of the basic usage of as in SQL Server.2 Specific analysis2.1 Defining variable Types1 DECLARE @UserName as VARCHAR (+) = ' alan_beijing '2.2 Take aliases2.2.1 Alias for result set columnCode1 SELECT orderid,custid,orderdate 2 fromResultCode1 SELECT as ' Order ID ' as ' Customer ID ' as ' Order Date ' 2 fromResult2.2.2 Aliases for tables1 SELECT o.order

Label:Original: SQL Server Programming Series (2): About operations for SMO common objectsIn the previous week, I briefly described some of the basic concepts of SMO, in fact, the SMO architecture is far more than the simple one described in the previous article, and is a complete structure shown on MSDN: is

server|sqlserver| Data | database 1. Demand1 How to synchronize the online SQL Server database data to another SQL Server database in a timely manner. 2

server| Backup | data One: Back up the remote database, copy the backup files to the local, and then restore the database locally.Two: Copy the data files of the remote database with the log files to the local (the remote database service must be stopped before the copy can be copied), and then attach the database operation locally.Three: (Need to know the remote

SQL Server 2008SQL Server 2008 is a database management system developed by Microsoft CorporationHow it works: "Request-answer"Installation Requirements: Hardware (CPU, memory, hard disk), software (Windows XP Professional SP2 and XP versions above Windows OS)Installation of SQL Se