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How to test an SQL Update statement before running it?
...yway) you can also do a sanity check which rows are affected by running a select using the same WHERE clause as the UPDATE.
So if you UPDATE is
UPDATE foo
SET bar = 42
WHERE col1 = 1
AND col2 = 'foobar';
The following will show you which rows will be updated:
SELECT *
FROM foo
WHERE col1 ...
Restful way for deleting a bunch of items
...away with the javascript confirm on the same page, and instead, create the selection and redirect to it, showing a confirm message on that page. In other words:
From:
http://example.com/resources/
do a
POST with a selection of the ID's to:
http://example.com/resources/selections
which, if succes...
How can I get column names from a table in SQL Server?
... much more by querying the Information Schema views.
This sample query:
SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = N'Customers'
Can be made over all these DB objects:
CHECK_CONSTRAINTS
COLUMN_DOMAIN_USAGE
COLUMN_PRIVILEGES
COLUMNS
CONSTRAINT_COLUMN_USAGE
CONSTRAINT_...
MVC3 DropDownListFor - a simple example?
...uirements. Now, however, how is MVC FW supposed to map the value that is selected on this drop-down back into the simple string property on my view model?
...
How to find all duplicate from a List? [duplicate]
...d then filter out any of the enumerables that have a Count of <=1, then select their keys to get back down to a single enumerable:
var duplicateKeys = list.GroupBy(x => x)
.Where(group => group.Count() > 1)
.Select(group => group.Key);
...
Need to list all triggers in SQL Server database with table name and table's schema
...
Here's one way:
SELECT
sysobjects.name AS trigger_name
,USER_NAME(sysobjects.uid) AS trigger_owner
,s.name AS table_schema
,OBJECT_NAME(parent_obj) AS table_name
,OBJECTPROPERTY( id, 'ExecIsUpdateTrigger') AS isupda...
Eclipse copy/paste entire line keyboard shortcut
...
Ctrl-Alt-Down: copies current line or selected lines to below
Ctrl-Alt-Up:: copies current line or selected lines to above
Ctrl-Shift-L: brings up a List of shortcut keys
See Windows/Preference->General->Keys.
...
What's the purpose of SQL keyword “AS”?
...ynes Yes. Just concatenate (||) the columns and then give it an alias e.g. SELECT foo || bar AS foobar.
– Rupert Madden-Abbott
Dec 10 '18 at 14:26
...
IntelliJ IDEA: Move line?
... class
Click on relevant class (Red color field) and press,
Alt + Enter
Select valid class as per requirement
(8) Hierarchy of method calls
Select specific method and press,
Ctrl + Alt + H
(9) Comment In Code
Single Line : Select specific line and press,
Ctrl + /
Multiple Line : Select...
Generating random number between 1 and 10 in Bash Shell Script [duplicate]
How would I generate an inclusive random number between 1 to 10 in Bash Shell Script?
6 Answers
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