Search results
Mar 31, 2017 · 2. From this table, for each RANGE_ID, I need to select rows using the following conditions: If there are rows with identical columns (apart from the ID field) then only select the row which has FLAG_LINE = 1, if there are identical rows but none of them contain a FLAG_LINE=1 column then select all of them, based on this the query should return ...
- SQL Where Clause with Numeric Comparison Examples
- SQL Where Clause with Characters Example
- SQL Where Clause with Dates Examples
The following query finds employees who have salaries greater than 14,000 and sorts the result setbased on the salary in descending order. Try It The following query finds all employees who work in the department id 5. Try It
SQL is case-insensitive. However, when it comes to the values in the comparisons, it is case-sensitive. For instance, the following query finds the employee whose last name is Chen. Try It However, if you use CHEN or chen, no row will be returned.
To get all employees who joined the company after January 1st, 1999, you use the following query: Try It If you want to find the employees who joined the company in 1999, you have several ways: 1. Use the YEAR function to get the year data from the hire_datecolumn and use the equal to (=) operator to form the expression. 2. Use two expressions with...
Nov 23, 2016 · A simple SQL solution to select rows conditionally can be implemented by assigning a priority to each customer’s contact types, using the RANK () analytic function along with DECODE, then selecting only the rows with top priority. The inner SQL can be encapsulated in a WITH clause for better readability. See it in action….
Nov 14, 2021 · In SQL, the COUNT() function is a fundamental tool for counting the number of records in a given dataset. However, in some cases, it is necessary to count the number of records based on certain conditions. Fortunately, SQL supports conditions in the COUNT() method, which allows a more complex approach to counting records. This article explores the
Jan 16, 2024 · Table of Contents. Understanding CASE WHEN Syntax. Basic Syntax: CASE WHEN THEN. CASE WHEN THEN ELSE. Multiple THENs in CASE WHEN. Examples of Using CASE WHEN in Data Analysis. Example 1: Categorizing Data. Example 2: Handling NULL Values. Example 3: Creating Aggregated Columns.
Syntax. SELECT column1, column2, ... FROM table_name. WHERE condition; Note: The WHERE clause is not only used in. SELECT statements, it is also used in UPDATE, DELETE, etc.!
People also ask
How to filter rows based on specified conditions in SQL?
How to select specific rows from a table in SQL?
How to select a condition from a table in SQL Server?
What happens if a row causes a condition to evaluate to true?
Aug 4, 2024 · Syntax. Now, let’s view the syntax: SELECT column1, column2, FROM table_name. WHERE condition; In this query, we use a logical expression condition that evaluates to TRUE, FALSE, or UNKNOWN. Now, let’s explore several methods that can incorporate IF statements within SQL WHERE clauses. 3.
