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How much size “Null” value takes in SQL Server
...
The following link claims that if the column is variable length, i.e. varchar then NULL takes 0 bytes (plus 1 byte is used to flag whether value is NULL or not):
How does SQL Server really store NULL-s
The above link, as well as the below link, claim that for fixed length columns, i.e. char(10...
SQL Server 2008: How to query all databases sizes?
...BASES-IN-0337f6d5#content
DECLARE @spacetable table
(
database_name varchar(50) ,
total_size_data int,
space_util_data int,
space_data_left int,
percent_fill_data float,
total_size_data_log int,
space_util_log int,
space_log_left int,
percent_fill_log char(50),
[total db size] int,
[to...
Clear android application user data
...mission.
So, run su first.
Here is the sample code:
private static final String CHARSET_NAME = "UTF-8";
String cmd = "pm clear com.android.browser";
ProcessBuilder pb = new ProcessBuilder().redirectErrorStream(true).command("su");
Process p = pb.start();
// We must handle the result stream in an...
Why does the indexing start with zero in 'C'?
...s the operand of the sizeof operator, or the unary & operator, or is a string literal used to initialize an array, an expression that has type "array of type" is converted to an expression with type "pointer to type" that points to the initial element of the array object and is not an lvalue. If...
Convert JSON style properties names to Java CamelCase names with GSON
...lizedName annotation:
@SerializedName("field_name_in_json")
private final String fieldNameInJava;
Note: When you have set a FieldNamingPolicy already, SerializedName will overwrite its settings for that specific field (quite handy for special cases).
...
Could not locate Gemfile
...ne-2.2.2-0/apps/redmine
bash-4.2$ cd htdocs/
bash-4.2$ ls
app config db extra Gemfile lib plugins Rakefile script tmp
bin config.ru doc files Gemfile.lock log public README.rdoc test vendor
bash-4.2$ cd plugins/
bash-4.2$ bundle install
Using rake (0.9.2.2)
Using i18n (0.6....
How to fix SSL certificate error when running Npm on Windows?
...ing certs
Set this environment variable to extend pre-defined certs:
NODE_EXTRA_CA_CERTS to "<path to certificate file>"
Full story
I've had to work with npm, pip, maven etc. behind a corporate firewall under Windows - it's not fun. I'll try and keep this platform agnostic/aware where possi...
How to check if a string contains only digits in Java [duplicate]
In Java for String class there is a method called matches, how to use this method to check if my string is having only digits using regular expression. I tried with below examples, but both of them returned me false as result.
...
How to render a DateTime in a specific format in ASP.NET MVC 3?
...ender it in a specific format - for example in the format which ToLongDateString() returns?
15 Answers
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How to change collation of database, table, column?
...as easy to run in MySQL Workbench, copy the rows and paste. I just did the extra step to run the above for information_schema.tables and the code in concat ALTER TABLE 'schema'.'table' CHARACTER SET = utf8mb4 , COLLATE = utf8mb4_bin ;
– Pierre
Jan 31 '19 at 16:...