Quick Answer: Can We Use Substr In Where Clause?

How do you use Substr in Group by clause?

For example: SELECT SUBSTR(lname,1,1), COUNT(*) FROM employee GROUP BY lname; S COUNT(*) – ———- A 1 A 1 B 1 C 1 F 1 J 1 J 1 K 1 M 1 M 1 S 1 S 1 T 1 W 1 14 rows selected.

In this example, the SELECT list has SUBSTR(lname,1,1); however, the GROUP BY clause contains just lname, without the SUBSTR function on it..

Can you have multiple where clauses in SQL?

You can specify multiple conditions in a single WHERE clause to, say, retrieve rows based on the values in multiple columns. You can use the AND and OR operators to combine two or more conditions into a compound condition. AND, OR, and a third operator, NOT, are logical operators.

What is order by clause in SQL?

The SQL ORDER BY Keyword The ORDER BY keyword is used to sort the result-set in ascending or descending order. The ORDER BY keyword sorts the records in ascending order by default. To sort the records in descending order, use the DESC keyword.

Which clause is required in an SQL query?

SELECT is the required clause in SQL query for the getting of information from a database MCQ. Explanation: The data from a database is selected using a statement called SELECT. The data which is returned is to be stored in the result table known as result-set.

Which of the following is an illegal data type in SQL?

A directory of Objective Type Questions covering all the Computer Science subjects. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews….Discussion Forum.Que.Which of the following is an illegal data type in SQLc.blobd.lintAnswer:lint2 more rows

How do I select a substring in mysql?

If you want to specify the length of the substring that you want to extract from a string, you can use the following form of the SUBSTRING function: SUBSTRING(string,position,length); The following is the SQL-standard version of above statement, which is longer but more expressive.

Can we use or in where clause?

The SQL WHERE clause is used to restrict the number of rows affected by a SELECT, UPDATE or DELETE query. The WHERE clause can be used in conjunction with logical operators such as AND and OR, comparison operators such as ,= etc. … When used with the OR logical operator, any of the criteria must be met.

Where is substring in SQL Server?

SQL Server SUBSTRING() FunctionExtract 3 characters from a string, starting in position 1: SELECT SUBSTRING(‘SQL Tutorial’, 1, 3) AS ExtractString;Extract 5 characters from the “CustomerName” column, starting in position 1: … Extract 100 characters from a string, starting in position 1:

Can we use two order by clause in query?

However we can use multiple columns in ORDER BY clause. When multiple columns are used in ORDER BY, first the rows will be sorted based on the first column and then by the second column.

Can we use number in order by clause?

We can use ROW_NUMBER to provide row number in a specified column based on Order By clause.

Which SQL keyword is used to retrieve a maximum value?

Which SQL keyword is used to retrieve a maximum value? Explanation: The MAX() function returns the largest value of the selected column.

How can use two conditions in SQL query?

SELECT column1, column2, columnN FROM table_name WHERE [condition1] AND [condition2]… AND [conditionN]; You can combine N number of conditions using the AND operator. For an action to be taken by the SQL statement, whether it be a transaction or a query, all conditions separated by the AND must be TRUE.