dynamic query in sql server

I believe that you will often encounter the problem of exporting SQL Server query results to Excel. If the number of export times is small, simply "Save Results; 1.1 prepare the query statement 1.2 select a database and start the Import and Export wizard 1.3 select a data source 1.4 select a target 1.5 1.6 1.7 1.

Label:How to find your worst-performing SQL Server queryI've often been asked this question repeatedly: "I have a poorly performing SQL Server." How do I find the worst performance query? “。 So in today's article there are some information and wizards that make it easy to fi

SQL Server database paging query has been a short board of SQL Server, idle, come up with several methods, assuming that there are table article, Field ID, year ... (other omitted), Data 53,210 (customer real data, quantity is not large), paging

(*'freetext_string' [] []) Example:　　　　Search Image FieldIn the field of the image type of SQL Server 2005, not only can you store graphics files, but you can also store many file types such as executables, music files, text files, and so on. SQL Server 2005 supports full-text search for the contents of some files

A business scenario that requires a union query:The query is very slow and takes about 37 seconds:Direct replication SQL in the database client execution, fast, it is known that the reason for MyBatis, on-line search, you can configure fetchsize= "500", but the test results are the same, re-view SQL, the return subquery and the merged

@num intSet @num = 1;WhileBeginIf @num%2=0BeginPrint @numEndSet @num [Email protected]+1EndThings: The ability to guarantee a large number of operations in a batch, if there is a failure, you can return to the original state. Ensure that the operation is correct.Only if the data changes, it will trigger things, that is, to increase the deletion.Classification:Explicit transactions (manual write required)Implicit transaction (MSSQL Default, no manual required)Begin tryBEGIN Tran-Set the point of

Recently, I have just received a copy of Microsoft SQL Server 2008 English version of the book from the most valuable expert project group-"Inside Microsoft 2008:t-sql Querying" (http:// www.microsoft.com/learning/en/us/book.aspx?ID=12804locale=en-us), roughly turned over and found a lot of changes in content, both new chapters, but also based on

For accidental reasons, when the inner join table is required, the corresponding field must beCase Sensitive. By default, SQL Server databases are case-insensitive. How can this problem be solved? To achieve this, there must be at least three operation levels: 1.Database level: The entire databaseChar,Varchar,Text,Nchar,NvarcharAndNtextThe data is case sensitive. (For ease of description, the data types are

Assume that you have a network ordering system based on Microsoft. NET, but the QC maintenance system still uses an old Oracle database application. If your customer places an order such as product replacement during the warranty period, the order will not be charged. In this case, you need to obtain real-time query results from the Oracle database. By establishing a link server (linked

For more information about SQL Server paging query stored procedures, see. For SQL Server paging query stored procedures, refer. The Code is as follows: Create procedure [dbo]. [up_Pager] @ Table varchar (2000), -- table name @ C

methods just one more column of Rewnumber? Of course not, look at the internal differences: On two SQL, add the following SQL separately, and use MS's include execution plan to facilitate viewing execution details: SET STATISTICS time on SQL to execute: SET STATISTICS time in go select top numcomimg.* from (select Row_number () over (orde

% 870 (4688 lines) Stored Procedures Proc: @ProductID = 870 1305 17 928 17 Is KB 26% 870 (4688 lines) In-stored procedure declaration Proc:where P.productid [email protected] 1305 18 984 18 Is KB 24% 897 (2 lines) Instant Query where P.productid =897 20 10 792 10 Is KB 13%

Tags: full management component estimated HTTPS start generation INI increasehttps://www.red-gate.com/simple-talk/sql/sql-training/the-sql-server-query-optimizer/to understand how to write SQL

SQL server allows you to quickly query information about a table among multiple databases. This example describes how SQL server can quickly query information of a table among multiple databases. We will share this with you for yo

Label:SQL Server database paging query has been SQL Server's short board, Idle to do nothing, think of several methods, assuming that there is a table article, Field ID, year ... (other omitted), Data 53,210 (customer real data, amount of small), page 30 per page, query page 1500th (that is, 第45001-45030条 data), field

I like to think of the tools bundled with SQL servers as inverted pyramid. tools for diagnosing and checking general problems are at the top, and tools for finding and diagnosing specific areas of problems are at the bottom. In addition to providing a convenient way to write SQL scripts, the QueryAnalyzer still needs to be used when you need to solve specific SQL

SQL Server query performance optimization and analysis of transactions and locks (1) Step 2: analyze the locking status using SQL statements. sys. in the sysprocesses view, find out the source of waiting for the initial lock of resources and the subsequent processes to be forced to stop. The following code is applicabl

the cold data should be only a cold database to initiate these 20 data requests. At this point the R table data needs to be compared, only part of the cold data.6. Nonlocality = Cold storage: When you query and use hot data, move hot data that is no longer used for a period of time to the cold storage.7. Cold storage = nonlocality: Query cold storage, the results of this

I've often been asked this question repeatedly: "I have a poorly performing SQL Server." How do I find the worst performance query? “。 So in today's article you will be given some information guides that make it easy to find answers to your questions. Ask SQL server! One ad

Tags: back top blog number expression ^c compare escape character directory quotesRead Catalogue Brief introduction First, the general search conditions used like Second, like special case: Search wildcard characters Back to top introductionLike in sql: Use a good fuzzy query directive in SQL Server