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What are the underlying data structures used for Redis?
...e implemented with linked lists.
Sets and Hashes are implemented with hash tables.
Sorted sets are implemented with skip lists (a peculiar type of balanced trees).
But when lists, sets, and sorted sets are small in number of items and size of the largest values, a different, much more compact enco...
Entity framework linq query Include() multiple children entities
...atic IQueryable<Company> CompleteCompanies(this DbSet<Company> table){ return table .Include("Employee.Employee_Car") .Include("Employee.Employee_Country") ; } //code will be... Company company = context.Companies.CompleteCompanies().Fi...
How are people managing authentication in Go? [closed]
...rmatted):
"I would suggest something like the following design:
create table User (
ID int primary key identity(1,1),
Username text,
FullName text,
PasswordHash text,
PasswordSalt text,
IsDisabled bool
)
create table UserSession (
SessionKey text primary key,
UserID int not null, -- Cou...
What is the recommended batch size for SqlBulkCopy?
...
One thing to consider is if the table is empty and has indexes. In those cases you might want to upload everything in one batch as mentioned here: technet.microsoft.com/en-us/library/ms177445(v=sql.105).aspx "If you bulk import data into an empty table with...
Whether a variable is undefined [duplicate]
....page_name ? "&page_name=" + opt.page_name : "");
retval.push( opt.table_name ? "&table_name=" + opt.table_name : "");
retval.push( opt.optionResult ? "&optionResult=" + opt.optionResult : "");
return retval.join("");
}
my_url("?z=z", { page_name : "pageX" /* no table_name ...
Get properties and values from unknown object
...
Here's something I use to transform an IEnumerable<T> into a DataTable that contains columns representing T's properties, with one row for each item in the IEnumerable:
public static DataTable ToDataTable<T>(IEnumerable<T> items)
{
var table = CreateDataTableForPropertiesO...
What are the possible values of the Hibernate hbm2ddl.auto configuration and what do they do
...this option is used it does not drop the whole schema instead it drops the tables whose mappings are available while running this. For example if a database with Schema S has A, B, C tables and java code has mappings for A and B only then Hibernate will not drop the table C.
– ...
Replacing NULL with 0 in a SQL server query
...olumn with something else, use IsNull.
SELECT ISNULL(myColumn, 0 ) FROM myTable
This will put a 0 in myColumn if it is null in the first place.
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Update all values of a column to lowercase
...v.mysql.com/doc/refman/5.0/en/string-functions.html#function_lower
UPDATE table_name SET tag = LOWER(tag)
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Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previ
I have an Insert stored procedure which will feed data to Table1 and get the Column1 value from Table1 and call the second stored procedure which will feed the Table2.
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