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CAP theorem - Availability and Partition Tolerance

...ustration/example about node-clusters meant here. is it a system or a data table/collections spread across different system or something else? – shrotavre Sep 14 '18 at 4:19 ...
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What is the use of GO in SQL Server Management Studio & Transact SQL?

...5 it seems that you can use GO with an int parameter, like: INSERT INTO mytable DEFAULT VALUES GO 10 The above will insert 10 rows into mytable. Generally speaking, GO will execute the related sql commands n times. share ...
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What is PostgreSQL explain telling me exactly?

...efore it starts writing rows: a sequential scan reads the first row of the table and emits it. The LIMIT reads its first row and then emits it. When would a component need to do a lot of processing before it can start to output any rows? There are a lot of possible reasons, but let's look at one cl...
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LoadRunner中参数化技术详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...在VuGen中运行脚本时,该值为-1. 8 DataFile/Table 可以在属性设置中编辑文件,添加内容,也可以从数据库中提取数据。 9 UseDefinedFunction 从dll的简单函数中获取信息替代参数 【...
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What is the right way to override a setter method in Ruby on Rails?

...iginal Answer If you want to override the setter methods for columns of a table while accessing through models, this is the way to do it. class Model < ActiveRecord::Base attr_accessible :attribute_name def attribute_name=(value) # custom actions ### write_attribute(:attribute_...
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SQL Server - When to use Clustered vs non-Clustered Index?

...ing: please very carefully pick your clustered index! Every "regular" data table ought to have a clustered index, since having a clustered index does indeed speed up a lot of operations - yes, speed up, even inserts and deletes! But only if you pick a good clustered index. It's the most replicated ...
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Do while loop in SQL Server 2008

...) DECLARE Iterator CURSOR FORWARD_ONLY FOR SELECT Id, Title FROM dbo.SourceTable OPEN Iterator WHILE 1=1 BEGIN FETCH NEXT FROM @InputTable INTO @Id, @Title IF @@FETCH_STATUS < 0 BREAK PRINT 'Do something with ' + @Title END CLOSE Iterator DEALLOCATE Iterator Unfortunately, T-SQL doe...
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How to fix the datetime2 out-of-range conversion error using DbContext and SetInitializer?

...l DateTime Start { get; set; } to datetime2 in corresponding column in the table. Because by default EF will map it to datetime. This can be done by fluent API or data annotation. Fluent API In DbContext class overide OnModelCreating and configure property Start (for explanation reasons it's a ...
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Using :after to clear floating elements

...s well: .clearfix:before, .clearfix:after { content: ""; display: table; } .clearfix:after { clear: both; } /* IE 6 & 7 */ .clearfix { zoom: 1; } Give the class clearfix to the parent element, for example your ul element. Sources here and here. ...
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Convert timestamp to date in MySQL query

... Convert timestamp to date in MYSQL Make the table with an integer timestamp: mysql> create table foo(id INT, mytimestamp INT(11)); Query OK, 0 rows affected (0.02 sec) Insert some values mysql> insert into foo values(1, 1381262848); Query OK, 1 row affected (...