Jeff Moden

Forum Replies Created

Viewing 15 posts - 8,581 through 8,595 (of 59,091 total)

Reply To: nvarchar(max) or nvarchar(1000)?

CharlesWagner wrote:
Concerning nvarchar (Max), it's an ill-conceived notion to applying this at all except if you hope to have in excess of 3000 characters. Just check indexing and varchar (max),...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

October 1, 2019 at 9:00 pm

#3685135
Reply To: clearing buffer pool

To be honest, you don't have to do a thing. SQL Server will flush the buffer pool based on the work load and what fits into memory all on its...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

October 1, 2019 at 8:47 pm

#3685134
Reply To: * to 1

rishabhdg wrote:
Hi,
both will work perfect. There is no difference wrt performance also. I have seen in some community posts that select 1 is faster than select * but if you...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

October 1, 2019 at 8:25 pm

#3685128
Reply To: After 2014 to 2017 Upgrade, table unused space growing massively.

Crud... ok... it turns out that my other databases are actually being affected. They're just large enough to make it look like the percentage of unused space is quite small. ...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

October 1, 2019 at 6:01 pm

#3685080
Reply To: How

jcelko212 32090 wrote:
I have a VARCHAR(n) field [sic: columns are not fields!] that is the description of my product like these 2 ones:
Ref Design
2566000 Sandália BEBE 19/24 Cx12
2578995 Chinelo M/ Dedo...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 30, 2019 at 6:34 pm

#3684703
Reply To: Using Big Data to Improve Health

I think that point #3 is the most important of all... and it should not only come with the same warnings as a chainsaw but should clearly state that if...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 30, 2019 at 1:52 pm

#3684569
Reply To: Unreliable Data Sensors

I like the idea of a backup camera but most of them seem to be poorly engineered. At night, you can't actually see anything in the passenger side mirror or...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 30, 2019 at 1:33 pm

#3684564
Reply To: How
To answer the question where the numbers could be anywhere from 1 to 10 digits (up to the max of INT), here's some test code (borrowing heavily on Phil's good...
- This reply was modified 6 years, 11 months ago by Jeff Moden.
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)
September 30, 2019 at 4:40 am

#3684440
Reply To: How

Changing Phil's code to handle single digits is easy because of the nature of numeric strings, if your pattern is guaranteed. Except for the comments, the additional test data, and...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 30, 2019 at 12:21 am

#3684429
Reply To: In which order should we take the SQL stairways server tutorials?

The listed order of of the stairways have nothing to do with the order of a study plan. They're not collectively meant to be an "overall stairway" to learning SQLServer...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 29, 2019 at 4:37 am

#3684363
Reply To: How

Phil's code works great for this but I do have a question...
Is there any chance of having less or more than 2 digits on either side of the "/" ?
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 28, 2019 at 10:45 pm

#3684331
Reply To: Printing Dates

I think this question is an excellent example of why you should never rely on defaults. 😉
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 27, 2019 at 2:23 pm

#3684052
Reply To: Need advice for logs

jbeclapez wrote:
You pointed at me something I should have mentionned in my first post. Sorry : "That's a business decision, not a technical one"
We are OK to loose a day...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 27, 2019 at 2:20 pm

#3684050
Reply To: Tried to pivot... but it executes faster when it is hardcoded

For the final result, do you need the format you've portrayed for the monthly column names or can we economize and clean those up a bit. For example, you have...
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 27, 2019 at 2:02 pm

#3684039
Reply To: How can a db_datareader database role create a table?

You say you were "about" to create a new table. Did you actually try to finish that task?
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.
Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

September 27, 2019 at 5:07 am

#3683842

Viewing 15 posts - 8,581 through 8,595 (of 59,091 total)