Tag Archives: SQL Examples

SQL with Examples : SQL INSERT SELECT Statement

SQL INSERT SELECT Statement INSERT statement is commonly used to insert a row into a table using specified values. There is a second form of INSERT that inserts the result of a SELECT statement in a table, known as INSERT SELECT. As its name suggests, it is made up of an INSERT statement and a SELECT …

SQL with Examples : SQL INSERT INTO Statement

SQL INSERT INTO Statement The INSERT INTO statement allows you to insert one or more new rows into a table. Using the INSERT INTO statement, it is possible to insert a complete row, a partial row, multiple rows or rows generated as the result of a query. Let’s now take a look at each of …

SQL with Examples : SQL Aggregate Functions

SQL Aggregate Functions It is often necessary to summarize data for analysis and reporting purposes. Be it determining the number of rows in a table, obtaining the sum of column’s values, or finding the column’s highest, lowest, or average value. Aggregate functions are used for this type of retrieval. Although each DBMS has its own …

SQL with Examples : SQL LIKE Operator

SQL LIKE Operator Until now you have been using operators such as conditional operators (for testing equality), BETWEEN operator (for checking against a range of values) or IN operator (for checking against a set of values) in which one thing is common; They all search for an exact match. Filtering data that way is all well and good. But sometimes a …

SQL with Examples : SQL IN Operator

SQL IN Operator The IN operator allows you to test whether a value falls within a set of values. A set can be a list of literal values, or the result of a subquery. Syntax The IN operator must be followed by a comma-delimited list of valid values enclosed within parentheses. SELECT column_name(s) FROM table_name …

SQL with Examples : SQL BETWEEN Operator

SQL BETWEEN Operator In addition to checking whether an expression is equal to another expression, you can build conditions that check whether an expression falls within a certain range. This type of condition is used when working with numerical or temporal data (data related to date and time), for example, to check for all products …

SQL with Examples : SQL WHERE Clause

SQL WHERE Clause Database tables usually contain large amounts of data, and you rarely need to retrieve all the rows in a table. More often than not, you will want to retrieve the subset of the table’s data as needed for specific operations or reports. Retrieving the desired data involves specifying search criteria, also known …

SQL with Examples : SQL SELECT Statement

SQL SELECT Statement The SQL statement that you will probably use most often is the SELECT statement. Its purpose is to retrieve data from one or more tables of the database (or even several databases) and display it. The result of a SELECT statement is another table, also known as a result set. Syntax The …

Learn to Code SQL Example – SQL | Numeric Functions

(SQL Example for Citizen Data Scientist & Business Analyst)   SQL | Numeric Functions Numeric Functions are used to perform operations on numbers and return numbers. Following are the numeric functions defined in SQL: ABS(): It returns the absolute value of a number. Syntax: SELECT ABS(-243.5); Output: 243.5 SQL> SELECT ABS(-10); +————————————–+ | ABS(10) +————————————–+ | 10 +————————————–+ …