大约有 37,000 项符合查询结果(耗时:0.0287秒) [XML]
How to display a dynamically allocated array in the Visual Studio debugger?
...Memory). Specify a memory start address =
m4x4
This displays data in a table, which is better for two and three dimensional matrices:
Right-click on the Memory window to determine how the binary data is visualized. Choices are limited to integers, floats and some text encodings.
...
How do I specify a password to 'psql' non-interactively?
...)" --rm postgres psql -h www.example.com dbname username -c 'SELECT * FROM table;'
– Bilal Akil
Nov 23 '17 at 4:34
3
...
How to get last N records with activerecord?
...rails is lazy, it will eventually hit the database with SQL like: "SELECT table.* FROM table ORDER BY table.id DESC LIMIT 5".
share
|
improve this answer
|
follow
...
How can I verify if one list is a subset of another?
...ists be the same for many tests? It does as one of them is a static lookup table 2.Does it need to be a list? It does not - the static lookup table can be anything that performs best. The dynamic one is a dict from which we extract the keys to perform a static lookup on. Will this fact alter the so...
Entity Framework with NOLOCK
...This essentially does the same as NOLOCK, but instead of doing it on a per table basis, it will do it for everything within the scope of the transaction.
If that sounds like what you want, here's how you could go about doing it...
//declare the transaction options
var transactionOptions = new Syst...
Sql Server equivalent of a COUNTIF aggregate function
...ver 2012) without changing the 'count' to a 'sum' and the same logic is portable to other 'conditional aggregates'. E.g., summing based on a condition:
SELECT SUM(CASE WHEN myColumn=1 THEN AD_CurrentView.NumberColumn ELSE 0 END)
FROM AD_CurrentView
...
How to unit test an object with database queries
...
I know this is old but what about creating a duplicate table to the one that is in the DB already. That way you can confirm DB calls work?
– bretterer
Oct 3 '12 at 3:59
...
How to remove convexity defects in a Sudoku square?
... :=
ComponentMeasurements[Image[l], "Centroid"][[1, 2]]
gridCenters =
Table[centerOfGravity[
ImageData[Dilation[Image[h], DiskMatrix[2]]]*
ImageData[Dilation[Image[v], DiskMatrix[2]]]], {h,
horizontalGridLineMasks}, {v, verticalGridLineMasks}];
The last step is to define two i...
What is a “static” function in C?
...) { return 0; }
static int sf() { return 0; }
and disassemble the symbol table with:
readelf -s main.o
the output contains:
Num: Value Size Type Bind Vis Ndx Name
5: 000000000000000b 11 FUNC LOCAL DEFAULT 1 sf
9: 0000000000000000 11 FUNC GLOBAL DEFAULT...
SQL command to display history of queries
...
For MySQL > 5.1.11 or MariaDB
SET GLOBAL log_output = 'TABLE';
SET GLOBAL general_log = 'ON';
Take a look at the table mysql.general_log
If you want to output to a log file:
SET GLOBAL log_output = "FILE";
SET GLOBAL general_log_file = "/path/to/your/logfile.log"
SET GLOBAL g...