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WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
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106
They are the same thing. If you use the set transaction isolation level statement, it will app...
How do I automatically update a timestamp in PostgreSQL
...ULT value:
CREATE TABLE users (
id serial not null,
firstname varchar(100),
middlename varchar(100),
lastname varchar(100),
email varchar(200),
timestamp timestamp default current_timestamp
)
Note that the value for that column can explicitly be overwritten by supplying a value in the...
Real mouse position in canvas [duplicate]
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The Simple 1:1 Scenario
For situations where the canvas element is 1:1 compared to the bitmap size, you can get the mouse positions by using this snippet:
function getMousePos(canvas, evt) {
var rect = canvas.getBoundingClientRect...
What's the UIScrollView contentInset property for?
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241
It sets the distance of the inset between the content view and the enclosing scroll view.
Obj-C...
Is C++14 adding new keywords to C++?
...ee tends to shy away from adding new keywords to the language, yet with C++11 that was not the case. Some examples:
3 Answe...
How to change column datatype from character to numeric in PostgreSQL 8.4
...ending on your data):
alter table presales alter column code type numeric(10,0) using code::numeric;
-- Or if you prefer standard casting...
alter table presales alter column code type numeric(10,0) using cast(code as numeric);
This will fail if you have anything in code that cannot be cast to nu...
How to determine a Python variable's type?
How do I see the type of a variable whether it is unsigned 32 bit, signed 16 bit, etc.?
17 Answers
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Can we use join for two different database tables?
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189
SQL Server allows you to join tables from different databases as long as those databases are o...
How to get box-shadow on left & right sides only
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16 Answers
16
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Avoid line break between html elements
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146
There are several ways to prevent line breaks in content. Using   is one way, and wor...