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What is the difference between SQL, PL-SQL and T-SQL?
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SQL a language for talking to the
database. It lets you select data,
mutate and create database objects
(like tables, views, etc.), change
database settings.
PL-SQL a procedural programming language (with embedded SQL)
T-SQL
(procedural) extensions for SQL used
by SQL Server
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Rails: How to list database tables/objects using the Rails console?
...how the tables
.table
'.help' to see help.
Or use SQL statements like 'Select * from cars'
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How to add item to the beginning of List?
I want to add a "Select One" option to a drop down list bound to a List<T> .
5 Answers
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click or change event on radio using jquery
... This doesn't work for me when a single radio is targeted and selecting another radio causes the other to deselect.
– Doug Amos
Jul 12 '13 at 8:03
1
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postgresql port confusion 5433 or 5432?
...instances running so make sure you're connecting to the right one by using select version() and SHOW data_directory;.
You can also specify a unix socket directory; check the unix_socket_directories setting of the PostgreSQL instance you wish to connect to and specify that with psql -h, e.g.psql -h...
ASP.NET MVC HandleError
...iews, controllers and models in it and now it works. Didn't know about the selective views though.
– Boris Callens
Oct 10 '08 at 19:27
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Generating a random password in php
...keyspace A string of all possible characters
* to select from
* @return string
*/
function random_str(
$length,
$keyspace = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
) {
$str = '';
$max = mb_strlen($keyspace, '8bit') - 1;
if ($max...
How do I retrieve my MySQL username and password?
...art the MySQL console client with the -u root option.
List all the users;
SELECT * FROM mysql.user;
Reset password;
UPDATE mysql.user SET Password=PASSWORD('[password]') WHERE User='[username]';
But DO NOT FORGET to
Stop the MySQL process
Start the MySQL Process normally (i.e. without the --ski...
inserting characters at the start and end of a string
...want to insert other string somewhere else in existing string, you may use selection method below.
Calling character on second position:
>>> s = "0123456789"
>>> s[2]
'2'
Calling range with start and end position:
>>> s[4:6]
'45'
Calling part of a string before that...
How do I start PowerShell from Windows Explorer?
...window itself (that is, the context menu that is displayed when no item is selected, such as when right-clicking in an empty area of the window).
HKCR\Directory\shell - This is the context menu of the folders in Windows Explorer.
HKCR\Drive\shell - This is the context menu for the drive icons in the...