Tutorial by Topics: s

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...

resource curl_init ([ string $url = NULL ] ) bool curl_setopt ( resource $ch , int $option , mixed $value ) bool curl_setopt_array ( resource $ch, array $options ) mixed curl_exec ( resource $ch ) void curl_close ( resource $ch ) ParameterDetailscurl_init-- Initialize a cURL sessionurl...

ParameterDetailscharacter_expressionthe existing string in your datastart_positionthe position in character_expression to delete length and then insert the replacement_stringlengththe number of characters to delete from character_expressionreplacement_stringthe sequence of characters to insert in c...

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(...

Subroutines get their arguments to magic variable called @_. While it doesn't have to be unpacked, it's recommended, as it helps readability, and prevents accidental changes as arguments of @_ are passed by reference (can be modified).

While many scripts, icons, and stylesheets can be written straight into HTML markup, it is best practice and more efficient to include these resources in their own file and link them to your document. This topic covers linking external resources such as stylesheets and scripts into an HTML document....

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 is a monitoring agent that can be used to send metrics to Bosun or any system that accepts OpenTSDB style metrics. It is modelled after OpenTSDB's tcollector data collection framework but is written in Go and compiled into a single binary. One of the design goals is to auto-detect servi...

Scollector supports tcollector style external collectors that can be used to send metrics to Bosun via custom scripts or executables. External collectors are a great way to get started collecting data, but when possible it is recommended for applications to send data directly to Bosun or to update...

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>

WebSocket is protocol, which enables two-way communication between a client and server: The goal WebSocket is to provide a mechanism for browser-based applications that need two-way communication with servers that does not rely on opening multiple HTTP connections. (RFC 6455) WebSocket works ove...

Bitwise operations alter binary strings at the bit level. These operations are incredibly basic and are directly supported by the processor. These few operations are necessary in working with device drivers, low-level graphics, cryptography, and network communications. This section provides useful k...