What is more efficient - handling with case statements in sql or handling the same data using if statements in code. I'm asking because my colleague has a huge query that has many case statements. I advised her to take stress off of the DB by coding the case statements. I've found that it is more efficient...but why?
Hello, is there any way to execute multiple statements (none of which will have to return anything) on Firebird? Like importing a SQL file and executing it.
I've been looking for a while and couldn't find anything for this.
Today I had a coworker suggest I refactor my code to use a label statement to control flow through 2 nested for loops I had created. I've never used them before because personally I think they decrease the readability of a program. I am willing to change my mind about using them if the argument is solid enough however. What are people's opinions on…
I have a SQL query with three SELECT statements. A picture of the data tables generated by these three select statements is located at www.britestudent.com/pub/1.png. Each of the three data tables have identical columns. I want to combine these three tables into one table such that:
(1) All rows in top table (Table1) are always included.
(2)…
I'm writing prepared statements that are supposed to insert data into a table, on a database that's been pre-selected in the variable $GLOBALS['mysqli']. The connection has been tested, and that's not the problem I'm having. I'm only running into trouble whenever my prepared statement involves INSERT INTO. I know the tablename, and field names…
This is a bit of an esoteric topic, but given the number of U.S. Companies (particularly oil companies) that operate and have subsidiaries in Venezuela, I think it is worthy of an honorable mention.
As you may or may not know, Venezuela's currency has had some changes over the years. In 2008, the Venezuelan Bolivar became the Bolivar Fuerte…
I have a Horizontal Labeled Hierarchy SmartArt object in my Word 2007 document and for some reason the background labels are just too tall.
How I can I make it look more like this?
Trying to size the object doesn't help!
My hierarchy is:
A
B
C
D
E
F
G
H
I
…
We are going to have to stop using lock statements one day. Just like we had to stop using goto statements. The problem is similar, they're pretty easy to follow in small programs, but code with locks isn't composable. That means that small pieces of program that work in isolation can't necessarily be put together and work together. Of…
This article from new author Oleg Netchaev describes the cursor-less script used to generate insert statements. This allows you to efficiently and easily add data generation statements to your project deployments.
I have heard that if statements should be avoid in shaders, because both parts of the statements will be execute, and than the wrong will be dropped (which harms the performance).
It's still a problem in DirectX 10? Somebody told me, that in it only the right branch will be execute.
For the illustration I have the code:
float y1 = 5;…
Is there an advantage to piecemealing sql strings together vs conditional sql statements in SQL Server itself? I have only about 10 months of SQL experience, so I could be speaking out of pure ignorance here.
Where I work, I see people building entire queries in strings and concatenating strings together depending on conditions. For…
Is there an easy way to generate a labeled bitmap image for each glyph contained in a given bitmap font file?
I'm trying to convert a collection of Japanese .bdf fonts into a format usable in MATLAB and C++, where each glyph is used as the OCR classification key for the character it represents.
I was recently in a discussion about the absolute statement "It costs more in programming time to optimise software than it costs to throw hardware at a problem".
The general thought (of which I agree with) is that as an absolute statement this is wrong. There are too many variables to ever generalise in such a way.
What other…
MySQL Reporting requirements sometimes require both unknown column and row values, necessitating a more powerful means of generating crosstabs. Today's article presents Prepared Statements, which dynamically generate the SQL and assign it to a variable so that we can tailor the output based on the number of data values.
MySQL Reporting requirements sometimes require both unknown column and row values, necessitating a more powerful means of generating crosstabs. Today's article presents Prepared Statements, which dynamically generate the SQL and assign it to a variable so that we can tailor the output based on the number of data values.
<b>Database Journal:</b> "MySQL Reporting requirements sometimes require both unknown column and row values, necessitating a more powerful means of generating crosstabs. Today's article presents Prepared Statements, which dynamically generate the SQL and assign it to a variable so that we can tailor the output based…
The Data Manipulation Language (DML) includes the major commands, INSERT, UPDATE, DELETE, and SELECT...INTO. Today's article focuses specifically on the uber-useful INSERT, UPDATE, DELETE, and SELECT statements.
The Data Manipulation Language (DML) includes the major commands, INSERT, UPDATE, DELETE, and SELECT...INTO. Today's article focuses specifically on the uber-useful INSERT, UPDATE, DELETE, and SELECT statements.
MERGE is a new statement introduced in the SQL:2003 standard for performing multiple DML (Data Manipulation Language) statements against a target table at once. In this article we will look into ways to take advantage of this powerful addition to SQL Server 2008.
I'm fooling around with Box2D and libGDX and running into a peculiar problem with polling for input. Here's the code for the Screen's render() loop:
@Override
public void render(float delta) {
Gdx.gl20.glClearColor(0, 0, .2f, 1);
Gdx.gl20.glClear(GL20.GL_COLOR_BUFFER_BIT);
camera.update();
…
I found some funny or redundant statements on technical books I've read, I'd like to share.
And I mean good, serious, technical books.
Ok so starting it all:
The .NET framework doesn't support teleportation
From MCTS 70-536 Training kit book - .NET Framework 2.0 Application Development Foundation…
Microsoft SQL Server is a feature rich database management system product, with an enormous number of T-SQL commands. With each feature supporting its own list of commands, it can be difficult to remember them all. MAK shares his top 10 T-SQL statements that a DBA should know.
Join SQL…