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What is lazy loading in Hibernate?
...e child when parent is loaded from the database.
Example :
If you have a TABLE ? EMPLOYEE mapped to Employee object and contains set of Address objects.
Parent Class : Employee class,
Child class : Address Class
public class Employee {
private Set address = new HashSet(); // contains set of ch...
PostgreSQL: How to make “case-insensitive” query
...indexes to no longer be seekable. If this is a large or frequently queried table, that could cause trouble. Case-insensitive collation, citext, or a function-based index will improve performance.
– Jordan
Aug 10 '11 at 4:23
...
How can I convert a std::string to int?
...: std::ctype<char>
{
numeric_only(): std::ctype<char>(get_table()) {}
static std::ctype_base::mask const* get_table()
{
static std::vector<std::ctype_base::mask>
rc(std::ctype<char>::table_size,std::ctype_base::space);
std::fill(&am...
The case against checked exceptions
...with it.
This would be clearer with a counter-case. Imagine I'm writing a table API. I have the table model somewhere with an API including this method:
public RowData getRowData(int row)
Now as an API programmer I know there will be cases where some client passes in a negative value for the ro...
How to change the type of a field?
...big deal no matter how you do it. If you were using SQL and this was a big table you would probably have to take some down time.
– Gates VP
Jun 28 '16 at 18:16
...
What is the point of function pointers?
...d what is going on inside of the abstraction. Also, implementing your own vtable in C and write object oriented code there is a really good learning experience.
– Florian
Jun 2 '12 at 10:49
...
What's the difference between RANK() and DENSE_RANK() functions in oracle?
...SE_RANK() functions? How to find out nth salary in the following emptbl table?
10 Answers
...
How can I control the width of a label tag?
...
Giving width to Label is not a proper way. you should take one div or table structure to manage this. but still if you don't want to change your whole code then you can use following code.
label {
width:200px;
float: left;
}
...
Why use the SQL Server 2008 geography data type?
... of 18 bytes) for a real comparison.
So comparing storage types:
CREATE TABLE dbo.Geo
(
geo geography
)
GO
CREATE TABLE dbo.LatLng
(
lat decimal(15, 12),
lng decimal(15, 12)
)
GO
INSERT dbo.Geo
SELECT geography::Point(12.3456789012345, 12.3456789012345, 4326)
UNION ALL
SELEC...
Elements order in a “for (… in …)” loop
Does the "for…in" loop in Javascript loop through the hashtables/elements in the order they are declared? Is there a browser which doesn't do it in order?
The object I wish to use will be declared once and will never be modified.
...