SQL Performance

APRIL 10, 2019

The purpose of this article is to provide more details about the proposal, and hopefully you will be convinced of its importance and add your vote. ( symbol VARCHAR ( 10 ) NOT NULL , tradedate DATE NOT NULL , price NUMERIC ( 12 , 2 ) NOT NULL , CONSTRAINT PK_Ticker PRIMARY KEY ( symbol , tradedate ) ) ; GO.

C++ 73

C++ Virtualization Servers Code 73

SQL Performance

JANUARY 8, 2020

This article is the second in a series on NULL complexities. Last month I introduced the NULL as SQL's marker for any kind of missing value. I also explained how comparisons involving NULLs work with constants, variables, parameters and columns. NULL treatment inconsistencies. Linear versus aggregate computations.

Design 65

Design C++ Code Database 65

SQL Performance

SEPTEMBER 21, 2022

In this article, I want to focus more on how these functions improve and simplify tasks that were harder to achieve in the past. The need to manipulate data at the bit level with bitwise operations isn’t common in T-SQL, but you might stumble into such a need in some specialized scenarios. GET_BIT and SET_BIT.

Servers 122

Servers C++ Code Cache 122

SQL Performance

NOVEMBER 13, 2019

This article explores different techniques for computing row numbers with nondeterministic order. ( id INT NOT NULL CONSTRAINT PK_T1 PRIMARY KEY , grp VARCHAR ( 10 ) NOT NULL , datacol INT NOT NULL. ) This could be across the entire query result, or within partitions. CREATE TABLE dbo.

Servers 104

Servers C++ Storage Performance 104