SQL Server query Count occurrence of a substring in a parent main string
#sqlserver #substring
SQL Server query Count occurrence of a substring in a parent main string
Create a function called "CountSubstring" SQL Server function calculates the number of occurrences of a specified substring within a given main string. It does so by subtracting the length of the main string with all instances of the substring removed from the original length of the main string, and then dividing by the length of the substring. This function is a custom solution to efficiently count occurrences without using a recursive or iterative approach and is especially useful when the `CHARINDEX()` function isn't suitable for the task.
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