set transaction isolation level read uncommitted performance

Tài liệu Setting the Transaction Isolation Level pdf

Tài liệu Setting the Transaction Isolation Level pdf

Ngày tải lên : 21/01/2014, 07:20
... SqlTransaction BeginTransaction(string transactionName) SqlTransaction BeginTransaction(IsolationLevel myIsolationLevel, string transactionName) where • myIsolationLevel specifies the isolation ... follows: SET TRANSACTION ISOLATION LEVEL { READ COMMITTED | READ UNCOMMITTED | REPEATABLE READ | SERIALIZABLE } As you can see from the previous syntax, you can set the transaction isolation ... the levels shown earlier in Table 14.3 . The following example sets the transaction isolation level to SERIALIZABLE: SET TRANSACTION ISOLATION LEVEL SERIALIZABLE N ote The transaction isolation...
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Tài liệu Using Transaction Isolation Levels to Protect Data doc

Tài liệu Using Transaction Isolation Levels to Protect Data doc

Ngày tải lên : 14/12/2013, 18:16
... level. IsolationLevel il = IsolationLevel.Unspecified; if(chaosRadioButton.Checked) il = IsolationLevel.Chaos; else if(readCommittedRadioButton.Checked) il = IsolationLevel.ReadCommitted; ... IsolationLevel.ReadCommitted; else if(readUncommittedRadioButton.Checked) il = IsolationLevel.ReadUncommitted; else if(repeatableReadRadioButton.Checked) il = IsolationLevel.RepeatableRead; else if(serializableRadioButton.Checked) ... of the BeginTransaction( ) method of the Command or by setting the IsolationLevel property of an existing Transaction object. The default isolation level is ReadCommitted. Parallel transactions...
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Hệ Quản Trị Cơ Sở Dữ Liệu - Locks and Isolation level pdf

Hệ Quản Trị Cơ Sở Dữ Liệu - Locks and Isolation level pdf

Ngày tải lên : 15/03/2014, 14:20
... Trường hợp 1a begin tran set tran isolation level READ COMMITTED Tài liệu hư ớ ng dẫn thực hành Hệ Quản Trị Cơ Sở Dữ Liệu Lock-IsolationLevel - 4 - Sử dụng trong việc đọc ... dẫn thực hành Hệ Quản Trị Cơ Sở Dữ Liệu Lock-IsolationLevel - 12 - Trường hợp 1 T1 T2 begin tran set tran isolation level REPEATABLE READ select TEN from DocGia where ma_docgia ... DocGia set TEN = ‘xxx’ where Ma_docgia < 11 waitfor delay‘00:00:05’ rollback begin tran set tran isolation level READ UNCOMMITTED...
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Tài liệu Service Level and Performance Monitoring pptx

Tài liệu Service Level and Performance Monitoring pptx

Ngày tải lên : 17/01/2014, 08:20
... service into a service level nightmare. 20 20 CHAPTER ✦✦✦✦ In This Chapter Service Level Management Windows 2000 Service Level Tools Task Manager The Performance Console Performance Monitoring Guidelines ✦✦✦✦ 4667-8 ... disaster prevention as it is a performance -level maintenance practice. Using performance management, you would take systems to a performance point that is nearing threshold or maximum level, then you switch ... and then import the data in a spreadsheet, database, or report pro- gram such as Crystal Reports. 4667-8 ch20.f.qc 5/15/00 2:08 PM Page 734 Service Level and Performance Monitoring W indows...
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Báo cáo khoa học: Insulin resistance in human adipocytes occurs downstream of IRS1 after surgical cell isolation but at the 1 level of phosphorylation of IRS1 in type 2 diabetes pot

Báo cáo khoa học: Insulin resistance in human adipocytes occurs downstream of IRS1 after surgical cell isolation but at the 1 level of phosphorylation of IRS1 in type 2 diabetes pot

Ngày tải lên : 07/03/2014, 16:20
... and molecular levels, of how surgical cell isolation proce- dures may interfere with insulin’s control of meta- bolism. 8 We demonstrated that reversible insulin resistance directly after isolation ... 149 Insulin resistance in human adipocytes occurs downstream of IRS1 after surgical cell isolation but at the level of phosphorylation of IRS1 in type 2 diabetes 1 Anna Danielsson 1 , Anita O ¨ st 1 , ... following rapid cervi- cal dislocation, and with the same cell isolation proce- dure as used for human adipocytes. Directly after isolation, ERK1 ⁄ 2 phosphorylation was low in the rat adipocytes...
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Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc

Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high-performance centrifugal partition chromatography doc

Ngày tải lên : 07/03/2014, 21:20
... www.jss-journal.com Research Article Preparative isolation and purification of six volatile compounds from essential oil of Curcuma wenyujin using high -performance centrifugal partition chromatography Six ... Germany), equipped with HPCPC to pump. Maximum sample injection volume was 5 mL and the flow rate of the pump was set between 0 and 30 mL/min. Maximum pressure of the HPCPC equipment is 6.0 MPa. An ultra-violet ... lower mobile phase was pumped into HPCPC at a flow rate of 1.5 mL/min and the rotation speed was set at 1700 rpm under descending separation mode. The sample was injected through the sample loop...
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Báo cáo khoa học: "Enhancing Unlexicalized Parsing Performance using a Wide Coverage Lexicon, Fuzzy Tag-set Mapping, and EM-HMM-based Lexical Probabilities" ppt

Báo cáo khoa học: "Enhancing Unlexicalized Parsing Performance using a Wide Coverage Lexicon, Fuzzy Tag-set Mapping, and EM-HMM-based Lexical Probabilities" ppt

Ngày tải lên : 17/03/2014, 22:20
... as described above. Note that this setting requires our trees to be tagged with the new (KC) tagset, and parsed sentences are also tagged with this tagset. For the Layered setting, we use lexical rules ... use this TB tagset whenever possible, and the KC tagset only for rare or unseen words. A Layered Representation It seems that learn- ing a treebank PCFG assuming such a different tagset would require ... layered setting has several advantages: First, the resulting trees are all tagged with the original TB tagset. Second, the training proce- dure does not require a treebank tagged with the KC tagset:...
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