This will find and delete all duplicate rows. You can refine the granularity of uniqueness by including more columns than just the Primary Key. If you are picky about which rows you want to delete, don't use this. Instead use the 'Find Duplicates' script I just submitted and then delete manually.
2002-05-24
1,097 reads
Find duplicates in any table, and report the number of duplicates. Enter in the table name, and the field or fieldsfor which there should only be one row for each of that field, but you suspect are more. For example, if an employee table has more than one record for an employeethis will find any […]
2002-05-24
597 reads
This script generates a statement that you would then run in the user database to get rowcounts of all tables. The advantages of this approach are you can modify it to get just the tables you want, and the output is easy to read:Table1-------1069Table2------10427
2002-05-24
428 reads
Based on post http://www.sqlservercentral.com/forum/link.asp?TOPIC_ID=4349 I decided to write this script which will check for object changes in all databases and send an email listing the objects changed to the Operator associated with the job. This by no means offsets the need to restrict change access to objects in production, but in those cases when you […]
2002-05-23
1,570 reads
If you sort by in ASC order by column that may include NULLs and empty strings ( if type is varchar), the records with nulls will always appear before any others.This script will show how to chagne this pattern and move all records with NULLs to the bottom of your recordset
2002-05-23
244 reads
When restoring a database to a different server, this script will sync the users to the system logins. (as a relative newcomer, I'm pretty proud of this)
2002-05-23
466 reads
2002-05-22
244 reads
When you have a variable that hold a comma separated numbers like '1,2,3' and you have a table with a column that has the value that should match a number in that list, you can use this script to avoid building a string and then executing it.You have to convert the columnID to varchar, the […]
2002-05-20
398 reads
This stored procedure produces a report of record counts for every table on your server. The record count report is organized by database, and table name.
2002-05-16
676 reads
I have a set of data that I need to display in a random order each time I displayed it. There are several ways to do this, for example using a CURSOR to add each record to a temp table with a GUID, but a quick and dirty way to do this is to use […]
2002-05-16
534 reads
By ReviewMyDB
My T-SQL Tuesday #202 entry for Marlon Ribunal's invitation on memorable SQL Server outages....
A RAG pipeline that answers questions in the demo is not the same thing...
By Steve Jones
“A multitude of bad ideas is necessary for one good idea” – from Excellent...
Telp/Wa 62 821-8200-233 Jl. Raya Cilandak KKO No.9, RT.1/RW.5, Ragunan, Ps. Minggu, Kota Jakarta...
Telp/Wa 62 821-8200-203 Gedung Perkantoran Hijau Arkadia, Tower C - Ground Floor, unit C103,...
Telp/Wa 62 821-8200-174 Menara Karya, Jl. H. R. Rasuna Said Ground floor, RT.1/RW.2, Kuningan,...
Which number will the COUNT() return after executing the following statements:
DROP TABLE IF EXISTS #test; CREATE TABLE #test (id INT) INSERT INTO #test (id) SELECT * FROM GENERATE_SERIES(1, 3) AS gs ; ALTER TABLE #test ADD flag BIT CONSTRAINT DF_#test_flag DEFAULT 0; go UPDATE #test SET flag = 0 WHERE id = 1 UPDATE #test SET flag = 1 WHERE id = 2 INSERT INTO #test (id) VALUES (4) SELECT COUNT(*) FROM #test AS t WHERE flag = 0See possible answers