Are you a Senior Sql Server DBA or novice looking for a Daily Sql Server Health Check? As a Senior DBA for over 15 years I have compile a few scripts I use on a daily basis to check the health of my Sql Servers. Perform a Daily Sql Server Health Check on your Sql […]
2020-05-06
16,678 reads
A common question that I've seen online is how do I return multiple sql datasets from a single query using INVOKE-SQLCMD. Most of the answers out there say it is not possible, but it is in fact possible by using the OutputAs dataset parameter. This parameter outputs a dataset that has all of the information […]
2020-04-24 (first published: 2020-04-16)
7,786 reads
This script will provide a list of indexes that are not used in a database. Indexes are overhead and any indexes not being used but are being updated cause additional load on a database. This looks at the following items: User seeks, scans and lookups. If all three of these are zero and the User […]
2020-04-21 (first published: 2020-04-13)
4,345 reads
This script on missing indexes that SQL had found. SQL will track queries and provide suggestions on indexes it feels will provide improvements. You should not take this information and create all the indexes. Performance tuning can be an art and takes practice. This information should be reviewed and as a DBA implemented a little […]
2020-04-20 (first published: 2020-04-13)
12,387 reads
Several months ago someone commented on a calendar thread that you should not even try to calculate Easter in SQL Server because the math was too hard. That got me to thinking and I decided to see if that was actually the case. I found that there are several well known algorithms available - but […]
2020-04-06 (first published: 2020-03-31)
5,252 reads
Know who all the individual group members are for a given WINDOWS_GROUP login. This script uses the sys.xp_logininfo procedure to find group members for each login on an instance. This is useful when attempting to remove orphaned WINDOWS_LOGINS. May have issues working across your logged in domain.
2020-03-23 (first published: 2020-03-13)
1,660 reads
Easily graph your storage needs based on msdb backup data recorded automatically, no matter what your backup solution is.
2020-03-17 (first published: 2020-03-10)
1,727 reads
This script will find all orphaned users on all databases on an instance, and generate a script to drop each user. Simply execute, copy the values from the DropScript column to a new SSMS window and execute. There are two risks with this script. Use with caution: This script attempts to take into account users […]
2020-03-16 (first published: 2020-03-13)
1,406 reads
The script searches through every column of every record in a database to find a value. It works with numbers too. Simply assign a value to @MyString. Indicate what datatype(s) you wish to search through, and indicate if you want wildcards, and execute. The search is smart and will only search through columns where @MyString is […]
2020-03-05 (first published: 2020-03-02)
1,200 reads
This script finds auto created statistics that duplicate existing stats generated by indexes, and may help to speed up your statistics maintenance. Copy the results from the DropScript column to a new SSMS tab and execute.
2020-02-21
544 reads
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
Comments posted to this topic are about the item Server-Level Table sizes
Comments posted to this topic are about the item Optional Parameter Plan Optimization in...
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers