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Delete column from SQLite table
...be done:
BEGIN TRANSACTION;
CREATE TEMPORARY TABLE t1_backup(a,b);
INSERT INTO t1_backup SELECT a,b FROM t1;
DROP TABLE t1;
CREATE TABLE t1(a,b);
INSERT INTO t1 SELECT a,b FROM t1_backup;
DROP TABLE t1_backup;
COMMIT;
sha...
What is the difference between the $parse, $interpolate and $compile services?
...ing the $interpolate provider to render our template against an Object and convert it into DOM nodes."
– Nadav Lebovitch
Aug 14 '14 at 18:27
...
Delimiters in MySQL
...ndividual statements terminate with ; */
CREATE TABLE tablea (
col1 INT,
col2 INT
);
INSERT INTO tablea
SELECT * FROM table1;
CREATE TABLE tableb (
col1 INT,
col2 INT
);
INSERT INTO tableb
SELECT * FROM table2;
/* whole procedure ends with the custom deli...
How do I create a parameterized SQL query? Why Should I?
...lue("@Baz", Baz), you could do that, but you shouldn't, especially because converting string values that map by default to nvarchar to the actual varchar type is one of the most common places that can trigger the effects mentioned in that link.
– Joel Coehoorn
...
SQL variable to hold list of integers
...ug someone else's SQL reports and have placed the underlying reports query into a query windows of SQL 2012.
8 Answers
...
Why use the yield keyword, when I could just use an ordinary IEnumerable?
...er generated custom ---gunk--- code. And less developer time writing and maintaining. (Of course, that was just this example)
– sehe
Dec 28 '12 at 11:57
4
...
Difference between virtual and abstract methods [duplicate]
...tation.
public abstract class E
{
public abstract void AbstractMethod(int i);
public virtual void VirtualMethod(int i)
{
// Default implementation which can be overridden by subclasses.
}
}
public class D : E
{
public override void AbstractMethod(int i)
{
/...
Which is better, number(x) or parseFloat(x)?
... they had typed '1'. The only time I really make an exception is when I am converting a style to a number, in which case parseFloat is helpful because styles come in a form like '3px', in which case I want to drop the 'px' part and just get the 3, so I find parseFloat helpful here. But really which ...
内存管理内幕：动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...全局变量：
清单 1. 我们的简单分配程序的全局变量
int has_initialized = 0;
void *managed_memory_start;
void *last_valid_address;
如前所述，被映射的内存的边界（最后一个有效地址）常被称为系统中断点或者 当前中断点。 在很多 UNIX&r...
Tuples( or arrays ) as Dictionary keys in C#
... keys, but that did not work, and I don't know what else to do. At this point I am considering making a Dictionary of Dictionaries of Dictionaries, but that would probably not be very pretty to look at, though it is how I would do it in javascript.
...