How do you remove comma separated values in SQL?

How do I remove a trailing comma in SQL Server?

First, you want to TRIM your data to get rid of leading and trailing spaces. Then REVERSE it and check if the first character is , . If it is, remove it, otherwise do nothing. Then REVERSE it back again.

How do I remove duplicates from a comma separated string in SQL Server?

SQL Server User Defined Function to remove duplicate entries from a comma delimited string (CSV). It takes comma delimited string and then converts it to table and runs DISTINCT operation on the table. DISTINCT operation removes duplicate value. After that it converts the table again into the string and it can be used.

How do I separate a value from a comma in SQL?

A) Using the STRING_SPLIT() function to split comma-separated value string

  1. SELECT value FROM STRING_SPLIT(‘red,green,,blue’, ‘,’); …
  2. SELECT value FROM STRING_SPLIT(‘red,green,,blue’, ‘,’) WHERE TRIM(value) <> ”;

How do you convert a comma separated string to a table?

Split and convert Comma Separated (Delimited) String to Table in SQL Server

  1. The SplitString function.
  2. Using the SplitString function in SQL Query.
  3. Using the SplitString function in a Stored Procedure.
  4. Executing the Stored Procedure.
  5. Downloads.
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How do I remove a specific character from a string in SQL?

SQL TRIM: How to Remove Unwanted Characters from a String

  1. If you specify LEADING , the TRIM function will remove any leading characters that match the trim_character.
  2. If you specify TRAILING , the TRIM function will remove any trailing characters that match the trim_character.

How can I remove last character from a string in SQL?

Remove last character from a string in SQL Server

  1. Using the SQL Left Function. Declare @name as varchar(30)=’Rohatash’ Select left(@name, len(@name)-1) as AfterRemoveLastCharacter.
  2. Using the Substring Function. Declare @name as varchar(30)=’Rohatash’ Select substring(@name, 1, len(@name)-1) as AfterRemoveLastCharacter.

How do you remove comma separated duplicate string values?

7 Answers

  1. Split the string at the comma to get the sequence.
  2. Apply the Reverse op, you get 2 2 2 6 …. 4 2.
  3. Apply the Distinct, you get 2,6,3,4,25,12.
  4. Take the first 2 elements (2,6)
  5. Reverse them 6,2.
  6. Join in a new string with the comma sep.

How do you eliminate duplicate rows in SQL query without distinct?

Below are alternate solutions :

  1. Remove Duplicates Using Row_Number. WITH CTE (Col1, Col2, Col3, DuplicateCount) AS ( SELECT Col1, Col2, Col3, ROW_NUMBER() OVER(PARTITION BY Col1, Col2, Col3 ORDER BY Col1) AS DuplicateCount FROM MyTable ) SELECT * from CTE Where DuplicateCount = 1.
  2. Remove Duplicates using group By.

How do I find duplicate characters in a string in SQL Server?

SQL Server: Count Number of Occurrences of a Character or Word in a String

  1. DECLARE @tosearch VARCHAR(MAX)=’In’
  2. SELECT (DATALENGTH(@string)-DATALENGTH(REPLACE(@string,@tosearch,”)))/DATALENGTH(@tosearch)
  3. AS OccurrenceCount.

How do I select Comma Separated Values in MySQL?

Use group_concat() function of mysql. The default separator between values in a group is comma(,). To specify any other separator, use SEPARATOR as shown below.

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How do you escape a comma in SQL?

Special characters such as commas and quotes must be “escaped,” which means you place a backslash in front of the character to insert the character as a part of the MySQL string.