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T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition
...ues.
The only way to do specifically what you're asking is to use dynamic SQL. This is, however, something I'd encourage you to stay away from. The solution above will almost certainly be sufficient for what you're after.
s...
“A lambda expression with a statement body cannot be converted to an expression tree”
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Is objects a Linq-To-SQL database context? In which case, you can only use simple expressions to the right of the => operator. The reason is, these expressions are not executed, but are converted to SQL to be executed against the database.
Try...
MySQL 'create schema' and 'create database' - Is there any difference
...etween the create schema command and the create database command for MySQL.
6 Answers
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How can you represent inheritance in a database?
I'm thinking about how to represent a complex structure in a SQL Server database.
8 Answers
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What is a good reason to use SQL views?
I am reading through the SQL Server 2008 bible and I am covering the views section. But the author really doesn't explain the purpose of views. What is a good use for views? Should I use them in my website and what are the benefits of them?
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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...
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
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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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