MySQL has a BIT_LENGTH() function that allows you to get the length of a string, measured in bits.
This function is similar to the LENGTH() function, which returns the length of a string in bytes. The same is true for the OCTET_LENGTH() function, which is a synonym for the LENGTH() function.
One of the functions included in T-SQL is the UNICODE() function. You can use this function with SQL Server (and Azure) to return the Unicode value of a given character.
This function works similar to the ASCII() function, except that it returns the Unicode value.
If you ever need to find the ASCII code for a given character when using SQL Server, the T-SQL ASCII() function is probably what you need.
The ASCII() function returns the ASCII code value of the leftmost character of a character expression. Simply provide the character as an argument and SQL Server will return the ASCII value of that character (or the leftmost character in the string).
In SQL Server, you can convert any lowercase string to uppercase by using the UPPER() function.
To use it, simply pass the string as an argument when calling the function.
In SQL Server, you can convert any uppercase string to lowercase by using the LOWER() function.
Simply provide the string as an argument when you call the function, and it will be returned in lowercase form.
If you ever find yourself wanting only the first part of a string, or the last part of it, this article might help.
This article is specific to SQL Server, but the functionality is pretty common across most/all database management systems, not to mention most programming languages.
When working with SQL Server, you can use theT-SQL LEFT() and RIGHT() functions to return any given number of characters from the left or right of a string.
When working with MySQL databases, you might occasionally find yourself needing to select only a certain number of characters from the left or right of a string. In such cases, you can use the LEFT() and RIGHT() functions to do just that.
Here’s the syntax for both of these functions:
LEFT(str,len) RIGHT(str,len)
Where str is the string that contains the substring you need to return, and len is the number of characters from the left you want returned.