Dynamic SQL - GeeksforGeeks (2024)

SQL SERVER – Input and Output Parameter For Dynamic SQL

An Input Parameter can influence the subset of rows it returns from a select statement within it. A calling script can get the value of an output parameter. An aggregate function or any computational expression within the stored process can be used to determine the value of the output parameter. A parameter whose value is given into a stored proced

Difference between Structured Query Language (SQL) and Transact-SQL (T-SQL)

Structured Query Language (SQL): Structured Query Language (SQL) has a specific design motive for defining, accessing and changement of data. It is considered as non-procedural, In that case the important elements and its results are first specified without taking care of the how they are computed. It is implemented over the database which is drive

Configure SQL Jobs in SQL Server using T-SQL

In this article, we will learn how to configure SQL jobs in SQL Server using T-SQL. Also, we will discuss the parameters of SQL jobs in SQL Server using T-SQL in detail. Let's discuss it one by one. Introduction :SQL Server Agent is a component used for database task automation. For Example, If we need to perform index maintenance on Production ser

Difference between Static and Dynamic SQL

Static or Embedded SQL are SQL statements in an application that do not change at runtime and, therefore, can be hard-coded into the application. Dynamic SQL is SQL statements that are constructed at runtime; for example, the application may allow users to enter their own queries. Dynamic SQL is a programming technique that enables you to build SQL

Difference between T-SQL and PL-SQL

1. Transact SQL (T-SQL) : T-SQL is an abbreviation for Transact Structure Query Language. It is a product by Microsoft and is an extension of SQL Language which is used to interact with relational databases. It is considered to perform best with Microsoft SQL servers. T-SQL statements are used to perform the transactions to the databases. T-SQL has

SQL Server | Convert tables in T-SQL into XML

In this, we will focus on how tables will be converted in T-SQL into XML in SQL server. And you will be able to understand how you can convert it with the help of command. Let's discuss it one by one. Overview :XML (Extensible Markup Language) is a markup language similar to HTML which was designed to share information between different platforms.

SQL - SELECT from Multiple Tables with MS SQL Server

In SQL we can retrieve data from multiple tables also by using SELECT with multiple tables which actually results in CROSS JOIN of all the tables. The resulting table occurring from CROSS JOIN of two contains all the row combinations of the 2nd table which is a Cartesian product of tables. If we consider table1 contains m rows and table2 contains n

SQL Query to Check if Date is Greater Than Today in SQL

In this article, we will see the SQL query to check if DATE is greater than today's date by comparing date with today's date using the GETDATE() function. This function in SQL Server is used to return the present date and time of the database system in a ‘YYYY-MM-DD hh:mm: ss. mmm’ pattern. Features: This function is used to find the present date a

SQL Query to Add a New Column After an Existing Column in SQL

Structured Query Language or SQL is a standard Database language that is used to create, maintain and retrieve data from relational databases like MySQL, Oracle, SQL Server, Postgres, etc. In Microsoft SQL Server, we can change the order of the columns and can add a new column by using ALTER command. ALTER TABLE is used to add, delete/drop or modif

SQL Query to Convert Rows to Columns in SQL Server

In this article we will see, how to convert Rows to Column in SQL Server. In a table where many columns have the have same data for many entries in the table, it is advisable to convert the rows to column. This will help to reduce the table and make the table more readable. For example, Suppose we have a table given below: NAMECOLLEGEROLL NUMBERSUB

How to SQL Select from Stored Procedure using SQL Server?

There may be situations in SQL Server where you need to use a stored procedure to get data from a SQL query. For direct data selection from a stored procedure within a query, SQL Server offers options like OPENQUERY and OPENROWSET. The usual way is running the stored procedure independently and then querying the outcomes. The idea of utilizing SQL

SQL Quiz : Practice SQL Questions Online

This SQL quiz covers various topics like SQL basics, CRUD operations, operators, aggregation functions, constraints, joins, indexes, transactions, and query-based scenarios. We've included multiple-choice questions, fill-in-the-blank questions, and interactive coding challenges to keep things interesting and challenging. Whether you're a beginner l

BULK INSERT in SQL Server(T-SQL command)

BULK INSERT in SQL Server(T-SQL command): In this article, we will cover bulk insert data from csv file using the T-SQL command in the SQL server and the way it is more useful and more convenient to perform such kind of operations. Let's discuss it one by one. ConditionSometimes there is a scenario when we have to perform bulk insert data from .cs

SQL Exercises : SQL Practice with Solution for Beginners and Experienced

SQL (Structured Query Language) is a powerful tool used for managing and manipulating relational databases. Whether we are beginners or experienced professionals, practicing SQL exercises is important for improving your skills. Regular practice helps you get better at using SQL and boosts your confidence in handling different database tasks. So, in

Difference between SQL and T-SQL

SQL (Structured Query Language) is the standard language for managing and manipulating relational databases, enabling operations like querying, updating, and deleting data. T-SQL (Transact-SQL), an extension of SQL developed by Microsoft, adds advanced features and procedural capabilities specifically for SQL Server. In this article, We will learn

DBMS | SQL | Question 1

The statement that is executed automatically by the system as a side effect of the modification of the database is (A) backup (B) assertion (C) recovery (D) trigger Answer: (D) Explanation: Triggers are the SQL codes that are automatically executed in response to certain events on a particular table. These are used to maintain the integrity of the

DBMS | SQL | Question 2

Which of the following command is used to delete a table in SQL? (A) delete (B) truncate (C) remove (D) drop Answer: (D) Explanation: drop is used to delete a table completelyQuiz of this Question

SQL Query to Find Number of Employees According to Gender Whose DOB is Between a Given Range

Query in SQL is like a statement that performs a task. Here, we need to write a query that will find the number of employees according to gender whose DOB is in the given range. We will first create a database named “geeks” then we will create a table “department” in that database. Creating a Database : Use the below SQL statement to create a datab

Working With JSON in SQL

JSON stands for Javascript Object Notation. It is mainly used in storing and transporting data. Mostly all NoSQL databases like MongoDB, CouchDB, etc., use JSON format data. Whenever your data from one server has to be transferred to a web page, JSON format is the preferred format as front-end applications like Android, iOS, React or Angular, etc.,

Dirty Read in SQL

Pre-Requisite - Types of Schedules, Transaction Isolation Levels in DBMS A Dirty Read in SQL occurs when a transaction reads data that has been modified by another transaction, but not yet committed. In other words, a transaction reads uncommitted data from another transaction, which can lead to incorrect or inconsistent results. This situation can

QUOTENAME() Function in SQL Server

QUOTENAME() function : This function in SQL Server is used to return a Unicode string with delimiters added in order to make the string a valid SQL Server delimited identifier. Features : This function is used to find a Unicode string with delimiters added. This function accepts only strings and delimiters. This function add delimiters by default i

Print all even numbers from 1 to n in PL/SQL

Prerequisite- PL/SQL Introduction In PL/SQL code groups of commands are arranged within a block. It groups together related declarations or statements. In declare part, we declare variables and between begin and end part, we perform the operations. Given a number N, the task is to display all the even numbers and their sum from 1 to N. Examples: In

Removing Duplicate Rows (Based on Values from Multiple Columns) From SQL Table

In SQL, some rows contain duplicate entries in multiple columns(>1). For deleting such rows, we need to use the DELETE keyword along with self-joining the table with itself. The same is illustrated below. For this article, we will be using the Microsoft SQL Server as our database. Step 1: Create a Database. For this use the below command to crea

SQL | Arithmetic Operators

Prerequisite: Basic Select statement, Insert into clause, Sql Create Clause, SQL Aliases We can use various Arithmetic Operators on the data stored in the tables. Arithmetic Operators are: + [Addition] - [Subtraction] / [Division] * [Multiplication] % [Modulus] Addition (+) : It is used to perform addition operation on the data items, items include

SQL | Top-N Queries

Top-N Analysis in SQL deals with How to limit the number of rows returned from ordered sets of data in SQL. Top-N queries ask for the n smallest or largest values of a column. Both smallest and largest values sets are considered Top-N queries. Following this type of searching technique could save lot of time and complexities. Top-N analysis are use

Reverse a number in PL/SQL

Prerequisite - PL/SQL introduction In PL/SQL code groups of commands are arranged within a block. A block group related declarations or statements. In declare part, we declare variables and between begin and end part, we perform the operations. Explanation: Consider the example, input = 12345. Step 1 : mod(12345,10) = 5 rev:= 0*10 + 5 = 5 num = flo

Print different star patterns in SQL

Let's see how we can print the pattern of various type using SQL. Syntax : Declare @variable_name DATATYPE -- first declare all the -- variables with datatype -- like (int) select @variable = WITH_ANY_VALUE -- select the variable and -- initialize with value while CONDITION -- condition like @variable > 0 begin -- begin print replicate('*', @var

SQL Indexes

An index is a schema object. It is used by the server to speed up the retrieval of rows by using a pointer. It can reduce disk I/O(input/output) by using a rapid path access method to locate data quickly. An index helps to speed up select queries and where clauses, but it slows down data input, with the update and the insert statements. Indexes can

SQL | Intersect & Except clause

1. INTERSECT clause : As the name suggests, the intersect clause is used to provide the result of the intersection of two select statements. This implies the result contains all the rows which are common to both the SELECT statements. Syntax : SELECT column-1, column-2 …… FROM table 1 WHERE….. INTERSECT SELECT column-1, column-2 …… FROM table 2 WHE