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TSQL Tuesday Changing Times

[ 2017-07-22 19:44:01 | by 店小二05 ]
T-SQL Tuesday is a blog party started by Adam Machanic ( b/ t ) over five years ago. The first Tues ...
Question:I’m setting up a best practises document for our SQL Server builds and would like to focu ...
SQL数据库优化。 1.【强制】不要在foreach循环里进行元素的remove/add操作。remove元素请使用Iterator方式, ...
Excel报表基础数据导入SQL。今天来讲解下从Excel表的数据导进与之相对应的数据表里。 首先在数据库建一个空 ...
SQL多表查询之左右连接1.多表查询的操作、限制、笛卡尔积的问题2.统计函数及分组统计的操作3.子查询的操作, ...
【SQL改写】notexists-leftjoin(distinct)whereisnull改写,数据已经过脱敏处理。--原SQL 30min出不来结果s ...
SQL执行计划的理解。要理解执行计划,怎么也得先理解,那各种各样的名词吧。鉴于自己还不是很了解。本文打算 ...
sqlplus基础命令。 登入: 1.dos 界面: 普通用户登入: sqlplus username/password eg:sqlplus system/123456 ...
关于NoSQL数据库你应该了解的10件事。 四分之一个世纪以来,关系型数据库(RDBMS)一直是主流数据库模型。但 ...
I think that one of the most interesting and confusing data types in SQL Server is datetime. I thou ...

SQL Server的WITH (NOLOCK)

[ 2017-07-22 21:29:01 | by 店小二03 ]
缺点: 1.会产生脏读 2.只适用与select查询语句 优点: 1.有些文件说,加了WITH (NOLOCK)的SQL查询效 ...
1. Introduction In a previous article “ SQL Server Audit feature discovery and architecture “ ...
1. Introduction 1.1 Intended audience This document is intended for database administrators who ...
Its been an interesting weekend at gethynellis.com I have been attempting to put together a SQL Se ...

The Binomial Formula with T-SQL and R

[ 2017-07-22 21:33:01 | by 店小二04 ]
In a previous post I explained the basics of probability. In this post I will use some of those pri ...
There are times when DBA’s are required to export database user permissions to a file. This may be ...
I remember when I wrote a blog post in 2014 about how you can set up the Adventure Works Sample Data ...
We got a new server recently and one of my colleaguesran into an errorwhen restoring a database. The ...
This blog is a result of a Skype conversation with one of my clients. The issue, for which they con ...
Thought to myself today: a partitioning scheme with one row per partition, partitioned on clustered ...

Interesting Stuff - Week 14

[ 2017-07-22 21:39:01 | by 店小二04 ]
09 Apr 2017 in categories: roundup tags: data science distributed computing SQL ...

Right-aligning numbers in T-SQL

[ 2017-07-22 21:40:01 | by 店小二05 ]
When you output a series of numbers in T-SQL, people often want to right-align the numbers. So inste ...
Question:How to Change Owner of Database in SQL SERVER? Answer:There are three different ways t ...
I’ve been having a lot of fun with the new mssql extension for Visual Studio Code. I have an articl ...
Introduction Have you ever faced a situation when you need to make changes in a stored procedure ...
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