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Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...s:
Idx Name Size VMA LMA File off Algn
SYMBOL TABLE:
no symbols
我们可以看到start address是0x08048080，但有一个问题是Sections下面却什么都没有。这不是一个正常的程序？
接下来，使用十六进制工具 hexedit 查...
Storing sex (gender) in database
...the 'closest' data type would be tinyint with a CHECK constraint or lookup table as appropriate.
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Creating a copy of a database in PostgreSQL [closed]
...rday it worked, now random unique constrain are violated. Note: I drop all table to receiver db.
– gunzapper
Apr 1 '16 at 10:45
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JPA eager fetch does not join
...nd JOIN are two extremes and SUBSELECT falls in between. One can choose suitable strategy based on her/his domain model.
By default SELECT is used by both JPA/EclipseLink and Hibernate. This can be overridden by using:
@Fetch(FetchMode.JOIN)
@Fetch(FetchMode.SUBSELECT)
in Hibernate. It also all...
How do I read CSV data into a record array in NumPy?
...contents of a CSV file into a record array, much in the way that R's read.table() , read.delim() , and read.csv() family imports data to R's data frame?
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SQLite with encryption/password protection
...here is also litereplica. It uses the ChaCha cipher, faster than AES on portable devices based on ARMv7
– Bernardo Ramos
Jan 6 '17 at 19:28
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Remove characters except digits from string using Python?
...digs)
'1233344554552'
>>>
string.maketrans makes a translation table (a string of length 256) which in this case is the same as ''.join(chr(x) for x in range(256)) (just faster to make;-). .translate applies the translation table (which here is irrelevant since all essentially means iden...
json_encode is returning NULL?
...
few day ago I have the SAME problem with 1 table.
Firstly try:
echo json_encode($rows);
echo json_last_error(); // returns 5 ?
If last line returns 5, problem is with your data. I know, your tables are in UTF-8, but not entered data. For example the input was i...
Strings are objects in Java, so why don't we use 'new' to create them?
... yes, this optimization is possible because strings are immutable and therefore can be shared without problems. the shared "asdf" handling is an implementation of the 'Flyweight' design pattern.
– manuel aldana
Jan 6 '10 at 2:51
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setting multiple column using one update
How to set multiple columns of a table using update query in mysql?
2 Answers
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