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SQL - String Functions
SQL string functions are used primarily for string manipulation. The following table details the important string functions −
Sr.No. | Function & Description |
---|---|
1 | ASCII()
Returns numeric value of left-most character |
2 | CHAR()
Returns the character for each integer passed |
3 | CHARINDEX()
Returns the position of a substring within the given string. |
4 | CONCAT_WS()
Returns concatenate with separator |
5 | CONCAT()
Returns concatenated string |
6 | DIFFERENCE()
returns an integer value measuring the difference between the SOUNDEX() values of two different expressions(strings). |
7 | ESCAPE()
Returns a text with escaped characters. |
8 | FORMAT()
Returns the formatted string. |
9 | LEFT()
Returns the extracting string. |
10 | LEN()
Returns the length of the given string. |
11 | LOWER()
Returns returns the lower case of the given string. |
12 | LTRIM()
Returns a string after removing all the white spaces and characters from the string found on the left side. |
13 | NCHAR()
Returns the Unicode character based on the number code. |
14 | PATINDEX()
Returns the position of a pattern in a string. |
15 | QUOTENAME()
Returns a string with a delimiter |
16 | REPLACE()
Returns a new string by replacing all the occurrences of the particular part of a string (substring) with a specified string. |
17 | REPLICATE()
Returns the repeated value. |
18 | REVERSE()
Returns a reversed string. |
19 | RIGHT()
Returns the rightmost characters from the actual(current) string. |
20 | RTRIM()
Returns a string after removing all trailing blanks. |
21 | SOUNDEX()
Returns the Soundex string. |
22 | SPACE()
returns a string consisting of N number of space characters. |
23 | STR()
Returns a number as string. |
24 | STRING_AGG()
Concatenates the values of string expressions and places separator values between them. |
25 | STRING_SPLIT()
Splits a string into rows of substrings. |
26 | STUFF()
Returns a new string by inserting the second expression at the specified deleted place. |
27 | SUBSTRING()
Returns the part of the character. |
28 | TRANSLATE()
Returns a string from the first argument. |
29 | TRIM()
Returns a trimmed string. |
30 | UNICODE()
Returns an integer value of the first character. |
31 | UPPER()
returns a string that has all the characters in upper case. |