write a query to display position of first time 'A' character in every employee name.
Answers
Explanation:
Specific Letter
Here, we are going to see how to find the name of a person whose name starts with a specified letter in SQL. In this article, we will be making use of the Microsoft SQL Server as our database.
For example, finding the name of the person whose name starts with the letter “H”. We will use the % symbol after the specified letter in the SQL query. Here, we will first create a database named “geeks” then we will create a table “department” in that database. After, that we will execute our query on that table.
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The requirement of data refactoring is very common and vital in data mining operations. In the previous article SQL string functions for Data Munging (Wrangling), you’ll learn the tips for getting started with SQL string functions, including the substring function for data munging with SQL Server. As we all agree that the data stored in one form sometimes require a transformation, we’ll take a look at some common functions or tasks for changing the case of a string, converting a value into a different type, trimming a value, and replacing a particular string in a field and so on.
After reading this article, you’ll understand more about:
SQL String functions
Understand the SQL Server SUBSTRING function
How to handle data using it
How to use the SQL Server SUBSTRING function in the where clause
How to dynamically locate the starting and end character position
How to work with date-time string using the SQL Server SUBSTRING function
How to Create a simple sub-select using the T-SQL SUBSTRING function
And more…
We’ll deep dive on above points in this article.. It allows us to truncate the length of string value that is varchar data-type, when we select data from the input string or tables.
It takes three arguments.
The first one is the field that we want to query on.
The second argument is the starting character,
and the third argument is the ending character