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Most tricky/useful commands for gdb debugger [closed]
...e breakpoint
where: Line number currently being executed
info locals: View all local variables
info args: View all function arguments
list: view source
rbreak: break on function matching regular expression
share
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How to see indexes for a database or table in MySQL?
...fic table use SHOW INDEX:
SHOW INDEX FROM yourtable;
To see indexes for all tables within a specific schema you can use the STATISTICS table from INFORMATION_SCHEMA:
SELECT DISTINCT
TABLE_NAME,
INDEX_NAME
FROM INFORMATION_SCHEMA.STATISTICS
WHERE TABLE_SCHEMA = 'your_schema';
Removing ...
Get a list of all threads currently running in Java
Is there any way I can get a list of all running threads in the current JVM (including the threads not started by my class)?
...
opengl: glFlush() vs. glFinish()
I'm having trouble distinguishing the practical difference between calling glFlush() and glFinish() .
8 Answers
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argparse: identify which subparser was used [duplicate]
... method on the sub parser to solve this problem.
For example, I've added calls to set_defaults() to your code:
import argparse
parser = argparse.ArgumentParser( version='pyargparsetest 1.0' )
subparsers = parser.add_subparsers(help='commands')
# all
all_parser = subparsers.add_parser('all', help...
How do I delete all untracked files from my working directory in Mercurial?
Is it possible to delete all untracked files from my working directory? Let's say I added a bunch of files to my working directory, didn't add them via 'hg add' and now want to get rid of those new files entirely?
...
Turning a Comma Separated string into individual rows
...F(String, 1, CHARINDEX(',', String + ','), '')
FROM Testdata
UNION all
SELECT
SomeID,
OtherID,
LEFT(String, CHARINDEX(',', String + ',') - 1),
STUFF(String, 1, CHARINDEX(',', String + ','), '')
FROM tmp
WHERE
String > ''
)
SELECT
S...
Difference between volatile and synchronized in Java
...om obtaining the monitor (or lock) for the same object, thereby preventing all code blocks protected by synchronization on the same object from executing concurrently. Synchronization also creates a "happens-before" memory barrier, causing a memory visibility constraint such that anything done up t...
How to change identity column values programmatically?
...Y,
X VARCHAR(10)
)
INSERT INTO Test
OUTPUT INSERTED.*
SELECT 'Foo' UNION ALL
SELECT 'Bar' UNION ALL
SELECT 'Baz'
Then you can do
/*Define table with same structure but no IDENTITY*/
CREATE TABLE Temp
(
ID INT PRIMARY KEY,
X VARCHAR(10)
)
/*Switch table metadata to new structure*/
ALTER TABLE T...
Command to list all files in a folder as well as sub-folders in windows
I tried searching for a command that could list all the file in a directory as well as subfolders using a command prompt command.
I have read the help for "dir" command but coudn't find what I was looking for.
Please help me what command could get this.
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