Tutorial by Topics: m

Data in the world started to grow tremendously after mobile application came in the market. This huge amount of data became almost impossible to handle with traditional relational database - SQL. NoSQL databases are introduced to handle those data where much more flexibility came like variable n...

As with other relational database systems, SQL Server exposes metadata about your databases. This is provided through the ISO Standard INFORMATION_SCHEMA schema, or the SQL Server-specific sys catalog views.

  ![Alt text][id] ... intervening content ... [id]: /path/to/img.jpg "Optional title" The syntax for images is the same as that for links, but with an exclamation mark ! in front o...

Kotlin provides many extension methods on collections and iterables for applying functional-style operations. A dedicated Sequence type allows for lazy composition of several such operations. About laziness If you want to lazy process a chain, you can convert to a Sequence using asSequence(...

ParameterDetails--pullEnsures that the base image (FROM) is up-to-date before building the rest of the Dockerfile.

#See https://golang.org/pkg/text/template/ for Go Template Action and Function syntax expression = alert status {{.Last.Status}} and a variable {{.Eval .Alert.Vars.q | printf "%.2f"}} expression = `Use backticks to span multiple lines with line breaks in the Bosun config file` templ...

Bosun Templates can include graphs to provide more information when sending a notification. The graphs can use variables from the alert and filter base on the tagset for the alert instance or use the GraphAll function to graph all series. When viewed on the Dashboard or in an email you can click o...

Scollector can be used to monitor processes and services in Windows and Linux. Some processes like IIS application pools are monitored automatically, but usually you need to specify which processes and services you want to monitor.

<select name=""></select> <datalist id=""></datalist> <optgroup label="Option Group"></optgroup> <option value="">Option</option>

AttributeDescriptionGlobalAttributes that are available to any HTML5 element. For comprehensive documentation of these attributes see: MDN Global AttributesnameA string representing the name of an output. As a form element, output can be referenced by it's name using the document.forms property. Th...

There are also several other FOR XML modes: FOR XML RAW - Creates one <row> element per row. FOR XML AUTO - Attempts to heuristically autogenerate a hierarchy. FOR XML EXPLICIT - Provides more control over the shape of the XML, but is more cumbersome than FOR XML PATH.

Maps are data types used for storing unordered key-value pairs, so that looking up the value associated to a given key is very efficient. Keys are unique. The underlying data structure grows as needed to accommodate new elements, so the programmer does not need to worry about memory management. They...

Some times you need to create extended text documentation from you xml comments. Unfortunatly there is no standard way for it. But there are some separate projects that you can use for this case: Sandcastle Docu NDoc DocFX

Build a named capture group (X being the pattern you want to capture): (?'name'X) (?X) (?PX) Reference a named capture group: ${name} \{name} g\{name} Python and Java don't allow multiple groups to use the same name.

This topic outlines how and when the Swift runtime shall allocate memory for application data structures, and when that memory shall be reclaimed. By default, the memory backing class instances is managed through reference counting. The structures are always passed through copying. To opt out of th...

shift shifts the positional parameters to the left so that $2 becomes $1, $3 becomes $2 and so forth. "$@" is an array of all the positional parameters passed to the script/function. "$*" is an string composed of all the positional parameters passed to the script/function. ...

WITH QueryName [(ColumnName, ...)] AS (   SELECT ... ) SELECT ... FROM QueryName ...; WITH RECURSIVE QueryName [(ColumnName, ...)] AS (   SELECT ...   UNION [ALL]   SELECT ... FROM QueryName ... ) SELECT ... FROM QueryName ...; Official documentation: WITH clause A Common ...

A swarm is a number of Docker Engines (or nodes) that deploy services collectively. Swarm is used to distribute processing across many physical, virtual or cloud machines. Initialize a swarm: docker swarm init [OPTIONS] Join a swarm as a node and/or manager: docker swarm join [OPTIONS]...