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Not equal != operator on NULL
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As a manual workaround, you could commonly SELECT * FROM MyTable WHERE coalesce(MyColumn, 'x') <> 'x' to assign a constant if it is NULL value, providing you give an appropriate datatype for the sentinel value x (in this case a string/char). This is TSQL syntax ...
Removing a list of characters in string
I want to remove characters in a string in python:
18 Answers
18
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Copying data from one SQLite database to another
...rt Into commands for the tables you want to transfer.
INSERT INTO X.TABLE SELECT * FROM Y.TABLE;
Or, if the columns are not matched up in order:
INSERT INTO X.TABLE(fieldname1, fieldname2) SELECT fieldname1, fieldname2 FROM Y.TABLE;
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QString to char* conversion
I was trying to convert a QString to char* type by the following methods, but they don't seem to work.
10 Answers
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Should I use char** argv or char* argv[]?
...anslate all of the following, and all are the same thing:
int main(int c, char **argv);
int main(int c, char *argv[]);
int main(int c, char *argv[1]);
int main(int c, char *argv[42]);
Of course, it doesn't make much sense to be able to put any size in it, and it's just thrown away. For that reaso...
C char array initialization
I'm not sure what will be in the char array after initialization in the following ways.
6 Answers
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How can I generate an INSERT script for an existing SQL Server table that includes all stored rows?
...l need to run it at the database level.
Right-click the database in SSMS, select "Tasks", "Generate Scripts...". As you work through, you'll get to a "Scripting Options" section. Click on "Advanced", and in the list that pops up, where it says "Types of data to script", you've got the option to s...
Split string with delimiters in C
...lude <stdlib.h>
#include <string.h>
#include <assert.h>
char** str_split(char* a_str, const char a_delim)
{
char** result = 0;
size_t count = 0;
char* tmp = a_str;
char* last_comma = 0;
char delim[2];
delim[0] = a_delim;
delim[1] = 0;
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constant pointer vs pointer on a constant value [duplicate]
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char * const a;
means that the pointer is constant and immutable but the pointed data is not.
You could use const_cast(in C++) or c-style cast to cast away the constness in this case as data itself is not constant.
const c...
Converting stream of int's to char's in java
This has probably been answered else where but how do you get the character value of an int value?
12 Answers
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