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SQL add column with default value to an existing table [SOLVED]

Overview of default value constraints in SQL SQL default constraint is specified at the time of table creation or can be added with SQL ALTER table. SQL default constraint is used to specify a default

SQL UPDATE from SELECT statement [SOLVED]

Overview of SQL UPDATE from SELECT SQL update statement is used to alter existing values in a record or in multiple records of a table, We can update all records of a table or limit

SQL Remove Characters from String with Examples [SOLVED]

SQL specifies strings by enclosing them in single quotes for example ‘SQL tutorial’, SQL permits a variety of functions on character strings, such as concatenating, extracting substrings, finding the length of strings, and many more

SQL Delete Duplicate Rows with Practical Examples

Overview of SQL Delete duplicate rows Technically in SQL to prevent the insertion of duplicate values in a column of a database table we need to apply the SQL constraints on a column like SQL

SQL Drop Constraint Explained [Practical Examples]

Overview of SQL Drop Constraint SQL constraints are the restriction enforced on single or multiple columns of a table to restrict the insertion of wrong data, these constraints help maintain the integrity, reliability, and accuracy

SQL Floor() function Explained [Practical Examples]

Overview of SQL Floor() Function SQL Floor() function is used to calculate the largest integer value that is smaller than or equal to the given numeric value. SQL Floor() function performs roundoff on a number

Solved: SQL ambiguous column name [100% Working]

What is an ambiguous column name error in SQL? SQL ambiguous column name is one most common error we are facing while performing a join query with two or more tables, this type of error

SQL Mapping Carnality Explained with Examples

Overview of SQL Mapping Cardinality SQL Cardinality refers to the uniqueness in the data value of a particular column, the higher the uniqueness the cardinality will be higher in percentage, and Low cardinality means the

SQL Ranking Functions Explained [Practical Examples]

Overview of SQL Ranking Functions SQL Ranking functions are window functions used to assign the ranking value for each record in the partition of a result set, the ranking value is depended upon the rank

SQL Stored Procedure Explained [Practical Examples]

Overview of SQL Stored Procedure SQL stored procedures are generally precompiled group of an ordered series of Transact-SQL statements stored into a single logical unit which allow for variables and parameters declaration as well as

35+ SQL Functions Explained in Detail [Practical Examples]

40+ SQL Functions Explained in Detail [Practical Examples]

Overview of SQL Functions SQL provides much in-build function to perform operation of table data, these functions can be with-in SQL statements or queries, and can also be used within the programming environment provided by

SQL Transactions Explained [Practical Examples]

Overview of SQL Transactions SQL Transactions consists of a sequence of SQL statements and/or queries, the SQL standard specifies that a transaction begins implicitly when an SQL statement is executed, If the transactions execute successfully,

SQL Domain Constraints (NOT NULL, Check, UNIQUE)

SQL Integrity Constraints (NOT NULL, Check, UNIQUE)

Overview of SQL Integrity constraints Integrity constraints ensure that changes made to the database by authorized users do not result in a loss of data consistency; it ensures that the data insertion, updating, and other

SQL TOP Explained [Practical Examples]

Overview of SQL TOP SQL TOP clause is used to limit the records returned as the result set of SQL select query by specified number of rows or percentage of rows in SQL Server. When

SQL FULL OUTER JOIN Explained [Practical Examples]

Overview of SQL FULL OUTER JOIN SQL FULL OUTER JOIN is used to retrieve all records from both joined tables left table and right table, it combine the functionality of left outer join and right