sql server insert slow performance

Tags: des style http color java using OS StrongFor some systems with large data volume, the problem of database is not only inefficient, but also the data storage time is long. Especially like a reporting system, it can take up to several hours to spend on data import every day. Therefore, it makes sense to optimize database insert performance. There are a lot of cattle on the network, there will always be

For some systems with a large data volume, the database faces problems in addition to the low query efficiency, but also the long data warehouse receiving time. Especially for the report system, the time spent on data import may be several hours or dozens of hours every day. Therefore, MySQL is used to optimize the database insertion performance. For some systems with a large data volume, the database faces problems in addition to the low query effi

There are many reasons for slow query speed in SQL Server databases. The following are common causes: 1. No index or no index is used (this is the most common problem of slow query and is a defect in programming) 2. Low I/O throughput, resulting in a bottleneck effect. 3. the query is not optimized because no computing

1/Set up data tables firstCREATE TABLE basicmsg(Recvtime FLOAT not NULL,--Receive time, no data with the same timeAA INT not NULL,--24-bit address code.Flightid Varchar () NULL,-flight number)2/Set up stored proceduresUse Df17dataproIF EXISTS (SELECT * from SYS.) Procedures WHERE object_id = object_id (N ' [dbo].[ Bulkdataproc]))DROP PROC [DBO]. [Bulkdataproc]GO--Output NIC values in each rangeCREATE PROCEDURE BulkdataprocAsSET NOCOUNT onBULK INSERT b

Conn = "provider = Microsoft. Jet. oledb.4.0; Data Source =" + server. mappath ("test. mdb ");Strconn = new oledbconnection (conn );Strconn. open ();Strsql = "insert into content (content) vlaues ('" + txtcontent + "')";Cmd = new oledbcommand (strsql, strconn );Cmd. executenonquery ();Cmd. Dispose ();Strconn. Close (); A server error occurs in the "/test" applic

Label:Poptest is the only training institute for developing Test and development engineers in China, aiming at the ability of the trainees to be competent in automated testing, performance testing and testing tools development. In Poptest's LoadRunner training, in order to improve the performance of students experience, add a lot of server optimization knowledge,

SQL Server loop statement insert, SQL Server loop statement There is a table tt Description: Q (PK, int, not null) w (nchar (10), not null) e (int, not null) r (int, not null) t (int, not null) y (int, not null) u (int, not null) I (int, not null) o (int, not null) p (i

resources. The index positioning efficiency of the inserted record will be decreased, and there will be frequent disk operation when the data volume is large.Comprehensive Performance Testing :The test for Insert efficiency optimization using the above three methods is provided here.From the test results can be seen, the method of merging data + transactions in the small amount of data,

February 6, 2008 by pinaldave This is very common request recently-how to import CSV file into SQL server? How to load CSV file into SQL Server database table? How to load comma delimited file into SQL server? Let us see the solu

are recorded as 10 thousand, 0.1 million, 1 million, and respectively. From the test results, the performance of the optimization method has been improved, but the improvement is not very obvious. Comprehensive Performance test: Here we provide a test to optimize the INSERT efficiency by using the above three methods at the same time. From the test results, we

An attractive service for RDS is to provide users with a slow log health report. Reports provide TOP20 SQL for users from different dimensions (total execution time, total execution times, total logical reads, total physical reads). RDS hopes to provide users with stable, fast service, while users can get more personalized optimization recommendations from RDS.This information is important, and users can ta

Original: SQL Server transactional replication distribution to subscription synchronization slowRecently found that there is a release frequently problems, every few days the error is not synchronized, prompting the request to initialize. After you re-adjust the synchronization, the copy is still slow! 5 million or 6 million orders are not distributed every day!

insert (len/1000+1) times " "groups=divideintogroups (alltuples) Count=0 forGrouptuplesinchgroups:affectrows=Db.executemany (Insertsql, Grouptuples)ifAffectrows:count+=affectrows db.commit () needinsertnum=Len (alltuples) ispassedmsg= ('OK' ifNeedinsertnum==countElse 'SOME ERROR') Printandlog ("need insert%d records, and actual%d.%s"% (Needinsertnum, Count, ispassedmsg))The calling method is as follows:Ins

Label:The IO performance of SQL Server is affected by the IO latency of the physical disk and the IO operations performed internally by SQL Server. When monitoring disk performance, the primary measure (metric) is IO latency, whic

server| Speed | optimization MS SQL Server Query optimization method (1) There are many reasons for the slow query speed, common as follows: 1, no index or no index (this is the most common problem of query slow, is the defect of program design)2, I/O throughput is small, cr

The technical level can always be improved in context and nitpicking. If you never "find fault", you may not know if (str! = "") Not as good as if (str! = String. empty) efficient, batch insert, and delete SQL statements are the fastest to execute in that way. The difference between interfaces and abstract classes is not only the language level, but also the original permission management is designed in thi

Original: SQL Server performance Optimization nolock, greatly improve database query performanceThe company database grows with time, the data is more and more, the query speed is also more and more slow. Into the database to see a bit, hundreds of thousands of of the data, the query is really time-consuming.To improve

Tags: time interval fetch number release operation rebuild file GIF world loadThe IO performance of SQL Server is affected by the IO latency of the physical disk and the IO operations performed internally by SQL Server. When monitoring disk

(connectionString, CommandType.StoredProcedure, "CREATEPASSPORTWITHTVP", SqlParameter); 5. Test and record test results First set of tests, insert record number 1000 Second set of tests, insert record number 10000 Third group of tests, insert record number 1000000 Through the above test scenario, it is not difficult to find that the technical solution two adva

Refresh_vendor_prefix] Warning Code: ' + cast (@ @error as nvarchar) + ' Warning Lines: ' + cast (error_line () as nvarchar) + ' Warning Msg: ' +error_message () ') END CATCH3: Then the C # program runs slowly, but oddly enough, if you run this stored procedure separately in SQL Server Management Studio, it's fast,4: Can not find the cause of the problem, and then all the stored procedure is called the cod