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SQL Query to concatenate column values from multiple rows in Oracle
Would it be possible to construct SQL to concatenate column values from
multiple rows?
10 Answers
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Why does Sql Server keep executing after raiserror when xact_abort is on?
I just got surprised by something in TSQL. I thought that if xact_abort was on, calling something like
4 Answers
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Oracle SQL: Update a table with data from another table
...olumn = (select...)
never worked for me since set only expects 1 value - SQL Error: ORA-01427: single-row subquery returns more than one row.
here's the solution:
BEGIN
For i in (select id, name, desc from table1)
LOOP
Update table2 set name = i.name, desc = i.desc where id = i.id;
END LOOP;
EN...
SQL Server: Examples of PIVOTing String data
Trying to find some simple SQL Server PIVOT examples. Most of the examples that I have found involve counting or summing up numbers. I just want to pivot some string data. For example, I have a query returning the following.
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Is there a way to view past mysql queries with phpmyadmin?
I'm trying to track down a bug that's deleting rows in a mysql table.
13 Answers
13...
How to find largest objects in a SQL Server database?
How would I go about finding the largest objects in a SQL Server database? First, by determining which tables (and related indices) are the largest and then determining which rows in a particular table are largest (we're storing binary data in BLOBs)?
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How can I remove duplicate rows?
What is the best way to remove duplicate rows from a fairly large SQL Server table (i.e. 300,000+ rows)?
38 Answers
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How do I query for all dates greater than a certain date in SQL Server?
...swer: CONVERT(datetime, '20100401 10:01:01') - passing 2010-04-01 works in SQL Server Management Studio but not when sending the SQL statement via PHP/MSSQL.
– paperclip
Aug 30 '13 at 15:21
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Remove the last character in a string in T-SQL?
How do I remove the last character in a string in T-SQL ?
21 Answers
21
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Database Structure for Tree Data Structure
...s written a book on this subject, which is a good reference from a general SQL perspective (it is mentioned in the nested set article link above).
Also, Itzik Ben-Gann has a good overview of the most common options in his book "Inside Microsoft SQL Server 2005: T-SQL Querying".
The main things to ...