What does ASC indicate in ORDER BY SQL query?
In SQL ORDER BY clause, we need to define ascending or descending order in which result needs to be sorted.
- ASC: We can specify ASC to sort the result in ascending order.
- DESC: We can specify DESC to sort the result in descending order.
How do I sort by alphanumeric in SQL Server?
To do this, we’ll use two string functions:
- LEN(expression) – Returns the number of characters found in an expression. LEN(‘MICHIGAN’) returns 8 .
- LEFT(expression, length) – Starting from the left, position 1 , this function returns the length amount of characters. LEFT(‘Airplane’,3) returns ‘ Air ‘.
How do I select alphanumeric values in SQL?
Try this: SELECT * FROM table WHERE column REGEXP ‘^[A-Za-z0-9]+$’; ^ and $ require the entire string to match rather than just any portion of it, and + looks for 1 or more alphanumberic characters.
What is alphabetical order in SQL query?
All the character-based columns storing string and text are sorted in an alphabetical manner whenever an order by clause is applied to that column in an ascending manner. ORDER BY technology ASC; The output of the execution of the above query statement is as follows which is the same as the previous one.
What is the use of order by ASC in SQL?
ORDER BY ASC statement is used to sort the data from table in result-set in ascending order. ORDER BY ASC is used in SELECT statement. column1, column2, …, columnN – Specifies the column names from table. table_name – Specifies the name of the table. column_name – Specifies the column used to perform ORDER BY ASC operation.
What is the difference between ASC and DESC in SQL?
ASC| DESC Specifies that the values in the specified column should be sorted in ascending or descending order. ASC sorts from the lowest value to highest value. DESC sorts from highest value to lowest value. ASC is the default sort order. Null values are treated as the lowest possible values.
How to sort data by ascending order in SQL?
You can sort your table data in ascending order using the ORDER BY clause in SQL. SELECT columns FROM table ORDER BY column; If you want to sort by descending order then you also have to use the DESC keyword. SELECT columns FROM table ORDER BY column DESC;
How do you use order by in SQL?
SQL ORDER BY Keyword ORDER BY. The ORDER BY command is used to sort the result set in ascending or descending order. The ORDER BY command… ASC. The ASC command is used to sort the data returned in ascending order. DESC. The DESC command is used to sort the data returned in descending order.