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postgresql - add boolean column to table set default
... ADD COLUMN "priv_user" BOOLEAN DEFAULT FALSE;
you can also directly specify NOT NULL
ALTER TABLE users
ADD COLUMN "priv_user" BOOLEAN NOT NULL DEFAULT FALSE;
UPDATE: following is only true for versions before postgresql 11.
As Craig mentioned on filled tables it is more efficient to split i...
How to use the “required” attribute with a “radio” input field
...every radio button field need the attribute like below or is it sufficient if only one field gets it?
5 Answers
...
How to retrieve form values from HTTPPOST, dictionary or?
...st like to point out that you lose the backup of the compiler in option 2. If the model changes, the compiler will not catch the change in the related controllers. There are good cases for option 2 but I wouldn't encourage wide use.
– Serguei Fedorov
Mar 2 '16 ...
How to re-raise an exception in nested try/except blocks?
I know that if I want to re-raise an exception, I simple use raise without arguments in the respective except block. But given a nested expression like
...
Why am I getting 'Assembly '*.dll' must be strong signed in order to be marked as a prerequisite.'?
...amed assemblies. I've had this error when two projects reference slightly different versions of the same assembly and a more dependent project references these projects. The resolution in my case was to remove the key and version information from the assembly name in the .csproj files (it didn't mat...
How do I convert a byte array to Base64 in Java?
...().decode(encoded);
println(new String(decoded)) // Outputs "Hello"
Or if you just want the strings:
String encoded = Base64.getEncoder().encodeToString("Hello".getBytes());
println(encoded); // Outputs "SGVsbG8="
String decoded = new String(Base64.getDecoder().decode(encoded.getBytes()));
pr...
C# - Selectively suppress custom Obsolete warnings
...ete attribute (as just suggested by fellow programmers) to show a warning if a certain method is used.
4 Answers
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Number of days in particular month of particular year?
...
Java 8 and later
@Warren M. Nocos.
If you are trying to use Java 8's new Date and Time API, you can use java.time.YearMonth class. See Oracle Tutorial.
// Get the number of days in that month
YearMonth yearMonthObject = YearMonth.of(1999, 2);
int daysInMonth ...
How to link to part of the same document in Markdown?
...
In pandoc, if you use the option --toc in producing html, a table of contents will be produced with links to the sections, and back to the table of contents from the section headings. It is similar with the other formats pandoc writes,...
How to jQuery clone() and change id?
...e .insertAfter to insert it after the selected div. Also see updated code if you want it appended to the end instead of beginning when cloned multiple times. DEMO
Code:
var cloneCount = 1;;
$("button").click(function(){
$('#id')
.clone()
.attr('id', 'id'+ cloneCoun...