In SQL Server, the ATAN() function returns the arctangent of a value. In other words, it returns the angle, in radians, whose tangent is a specified float expression.
You provide the value as an argument when calling the function.
Tag: mssql
ASIN() Examples in SQL Server
Using SQL Server, you can use the T-SQL ASIN() function to return the arcsine of a number. In other words, this function returns the angle, in radians, whose sine is the specified float expression.
The return data type is float.
You provide the number as an argument when calling the function.
How to Rename a JSON Key in SQL Server (T-SQL)
If you’ve been using the JSON_MODIFY() function to modify JSON documents in SQL Server, you might be used to modifying the value part of a key/value property. But did you know that you can also modify the key part?
The trick to doing this is to copy the value to a new key, then delete the old key.
Examples below.
JSON_MODIFY() Examples in SQL Server (T-SQL)
In SQL Server, you can use the T-SQLÂ JSON_MODIFY() function to modify the value of a property in a JSON string. The function returns the updated JSON string.
JSON_QUERY() vs JSON_VALUE() in SQL Server: What’s the Difference?
Two of the many T-SQL functions available in SQL Server are JSON_QUERY() and JSON_VALUE(). These functions can be used to extract data from JSON documents.
Their general syntax is similar, and at first glance, you might think they do exactly the same thing, but they don’t. There’s definitely a place for both functions when working with JSON and SQL Server.
This article looks at the difference between JSON_QUERY() and JSON_VALUE().
JSON_QUERY() Examples in SQL Server (T-SQL)
When using JSON with SQL Server, you can use the JSON_QUERY() function to extract an object or an array from a JSON string.
To use this function, you provide the JSON expression as an argument. You can also provide a second (optional) argument to specify the object or array to extract.
JSON_VALUE() Examples in SQL Server (T-SQL)
When using JSON with SQL Server, you can use the JSON_VALUE() function to return a scalar value from a JSON string.
To use this function, you provide two arguments; the JSON expression, and the property to extract.
ISJSON() Examples in SQL Server (T-SQL)
When using SQL Server, you can use the ISJSON() function to test whether or not a string expression contains valid JSON.
If the expression contains valid JSON, ISJSON() returns 1, otherwise it returns 0.
From SQL Server 2022, we also have the option of testing for a specific JSON type.
Continue readingSQL Server FOR JSON PATH Examples (T-SQL)
When using SQL Server, you can use the FOR JSON clause in a query to format the results as JSON. When doing this, you must choose either the AUTO or the PATH option. This article contains examples of using the PATH option.
SQL Server FOR JSON AUTO Examples (T-SQL)
In SQL Server you can use the FOR JSON clause in a query to format the results as JSON. When doing this, you must choose either the AUTO or the PATH option. This article contains examples of using the AUTO option.