SQL Server

"Guide" This article describes how to build a simple data warehouse in SQL Server and analyze related issues. Basic concepts: 1. Cubes: Cubes are the primary object in online analytical processing (OLAP) and are a technology that allows fast

Microsoft's consolidation of SQL Server 2005 and Visual Studio 2005 is not a new initiative, Oracle pioneered the Oracle Developer Tools for Visual Studio 2003 at the end of 2004 Visual Studio. NET is intended to provide. NET platform, integrated

SQL Server Chinese version of the default Date field datetime format is YYYY-MM-DD Thh:mm:ss.mmm For example: Select GETDATE () Sorted out the date format conversion methods that you might often use in SQL Server: examples are as follows: Select

This article describes how to use Java to invoke SQL Server stored procedures, detailed 5 different kinds of storage. Please see below for details 1, the use of stored procedures with no parameters When using the JDBC driver to invoke stored

However, in SQL performance is always relatively low, the steps to perform from SQL have the following differences in SQL with no in sql: SQL attempts to convert the connection to multiple tables, and if the conversion is unsuccessful, execute the

server| Data | database Common failures that SQL Server cannot start --Did you modify the operating system password? --Modifying the operating system password, which causes SQL to not start the workaround: 1. My Computer--control Panel--management

server| security | Stored procedures SQL Server extended stored procedures, in fact, is a common Windows DLL, but in accordance with some of the rules to implement some functions. When writing an extended stored procedure recently, there are some

Server SELECT (case when A.colorder=1 then D.name else "end") Table name, A.colorder field ordinal number, A.name Field Name, (Case when ColumnProperty (A.id,a.name, ' isidentity ') =1 then ' √ ' Else ' "End ') identifies, (SELECT count

server| variable | solve Recently wrote procedure, encountered some problems. I think the question of "Use variable name as table name" is more valuable, write and share with us. Please do not hesitate to enlighten me if you have a good solution.

Brief introduction The column storage index already exists in SQL Server 2012, but only nonclustered column indexes are allowed in SQL Server 2012, which means that the column index refers to the underlying data on the original row storage index,

With the introduction of new sparse column functionality in SQL Server 2008, it is now possible to declare a column as a sparse column and to enter a null value in the column at any time and it will not consume any space. One technique is to find

1. Add Field ALTER TABLE DOCDSP Add Dspcode CHAR (200) 2. Delete fields ALTER TABLE table_name DROP COLUMN column_name 3. Modify the field type ALTER TABLE TABLE_NAME ALTER COLUMN column_name New_data_type 4.sp_rename renamed EXEC

First, the basic concept of the table A table is a data object that contains all the data in a database, and a table definition is a column collection Data is organized in a table similar to the spreadsheet in that it is organized in rows and

Using SQL Server Always on technology, if the configuration is the default configuration, there will be a high primary server CPU, such as the default configuration is as follows: Customization is needed to solve this problem. Let's take a look

Error tip: "An error has occurred while establishing a connection to the server." When connecting to SQL Server in failure, this is caused by the fact that under the default settings SQL server does not allow remote connections. (provider:named

Before opening a text, let's start with a few concepts. "Overwrite Query" When an index contains all the columns that a query references, it is often referred to as an "overwrite query." "Index Overlay" If the returned data column is contained

I often think that in support of spatial information, because it lacks the storage of geometry, MSSQL is always a bit slower than other databases. With the support of the new. NET CLR, you can really add your own based on. NET objects. Although I

SQL Server databases do not automatically generate a trace file as Oracle does when a deadlock occurs. Blocking information can sometimes be seen in [admin]->[Current Activity] (sometimes SQL Server Enterprise Manager will not respond because there

The SQL audit in SQL Server 2008 has become a first-class server object. As mentioned in the previous article, you can now even audit a SELECT statement query that requires the use of SQL tracing or other Third-party products in previous versions.

--Cross join produces a Cartesian value (x*y) SELECT * from Student crosses Join dbo. ClassInfo--Another way of writing select * from Student, ClassInfo--INNER join (Inner can omit) select *from Student JOIN dbo. ClassInfo on dbo. Student.class =