With the SQL WHERE clause in SQL Server, users can filter their query results in many ways. In most cases, we do not utilize all the options the WHERE clause provides, so we tend to forget that they exist. In this SQL tutorial, we will look at several examples of how to use the WH...
As you can see in this second option, where we use the OR operator, we were required to create 11 rows of code versus only nine rows of code when using the SQL WHERE IN clause. And we are not repeating our column name "firstname" repeatedly. Remember, cleaner and more precise code i...
the scope of theWHEREclause includes theUPDATEandDELETEstatements. TheWHEREclause is indispensable for quality work with MySQL databases. That’s why the current article will deal with this clause and explore its distinguishing features in-depth. ...
In SQL, in order to EXCLUDE certain rows from being returned by a SELECT query, we use some restricting or excluding conditions based on some criteria. EXCLUDE conditions in SQL usually appear in the WHERE clause of the statement or in the HAVING clause of an aggregate query. Some commonly ...
18-9 DIFFERENCE USING Clause 18-10 Specifying the usinglist in a DIFFERENCE USING Clause 18-11 Parameterized Oracle CQL Query 18-12 Equivalent Queries at Runtime 18-13 Using Views Instead of Subqueries 18-14 Using View Names to Distinguish Between Stream Elements of the Same Name 18-15 Schema...
(in short SEQUEL) by IBM. But after sometime IBM found that SEQUEL was a trademark for UK basedHawker Siddeley Aircraft Company, it dropped word “English” and acronym was change to SQL. SQL Syntax is a simple English statement, thus makes SQL based queries one of the most easy to ...
Add a condition using the WHERE clause to decide which rows to delete. The DELETE statement without a WHERE condition will delete all rows. With the help of the USING clause, we can check the reference condition to one or many columns in another table. ...
Example 1: Sort results on a column defined in a Select statement using SQL Order By clause Suppose our requirement is to sort the result by BirthDate column. This column is also specified in the column list of Select statement. 1
Another example of where queries on an association model might be useful is to return the confidence for various rules and itemsets so that you can compare the effectiveness of different cross-sell strategies. The following examples illustrate how to create such queries. ...
SQL examples: How to filter a SELECT statement In this section, we will take a glance at simple clause usage of the WHERE clause. If we want to filter the result set of the SQL SELECT statement, we have to use the WHERE clause. For example, we want to filter the fruits whose color...