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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...
What is the recommended batch size for SqlBulkCopy?
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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...
Import CSV file into SQL Server
...ll be
inserted with double quotes into rows.
after inserting the data into table you could replace those double quotes with ''.
update table
set columnhavingdoublequotes = replace(columnhavingdoublequotes,'"','')
3) How do we track if some rows have bad data, which import skips?
(does import...
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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In a storyboard, how do I make a custom cell for use with multiple controllers?
...he goal is to have those be re-usable throughout the app (ie, in any of my tableview controllers).
6 Answers
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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 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...
What is the fastest substring search algorithm?
...e one that performs best with your data.
Boyer-Moore uses a bad character table with a good suffix table.
Boyer-Moore-Horspool uses a bad character table.
Knuth-Morris-Pratt uses a partial match table.
Rabin-Karp uses running hashes.
They all trade overhead for reduced comparisons to a differen...
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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Get properties and values from unknown object
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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...