Antwort What is the opposite of like in SQL? Weitere Antworten – What is the opposite of like operator in SQL

What is the opposite of like in SQL?
NOT LIKE is the exact opposite of the LIKE OPERATOR. It will return true for any string that doesn't match the pattern. So the same examples would return the exact opposite. It is just the negation of the LIKE operator.SQL not like statement syntax will be like below. SELECT column FROM table_name WHERE column NOT LIKE pattern; UPDATE table_name SET column=value WHERE column NOT LIKE pattern; DELETE FROM table_name WHERE column NOT LIKE pattern; As an example, let's say we want the list of customer names that don't start with 'A'.The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. There are two wildcards often used in conjunction with the LIKE operator: The percent sign % represents zero, one, or multiple characters.

What is trigger in SQL : An SQL trigger is a database object that is associated with a table and automatically executes a set of SQL statements when a specific event occurs on that table. Triggers are used to enforce business rules, maintain data integrity, and automate certain actions within a database.

What is the opposite of like in MySQL

The MySQL NOT LIKE operator works in the opposite way to the LIKE comparison operator. Instead of retrieving data according to the specified pattern, it finds everything that does not match it. This operator can be useful when we want to exclude specific data from the search results.

Can we use not like in SQL : Summary. U-SQL provides the LIKE and NOT LIKE comparison operators that are familiar from T-SQL that checks if a string value matches or does not match a simple pattern. The pattern can include regular characters and wildcard characters.

This operator can be useful in cases when we need to perform pattern matching instead of equal or not equal. The SQL Like is used when we want to return the row if specific character string matches a specified pattern. The pattern can be a combination of regular characters and wildcard characters.

3 Different Types of Triggers in SQL

  • DML or Data Manipulation Language Triggers. DML triggers allow the user to execute an additional code in response to the data modification or execution of insert, update, or delete statements.
  • DDL or Data Definition Language Triggers.
  • Logon Triggers.

What are the 4 types of triggers in SQL

In SQL Server we can create four types of triggers:

  • DDL Triggers. In SQL Server we can create triggers on DDL statements (like CREATE, ALTER, and DROP) and certain system-defined stored procedures that perform DDL-like operations.
  • DML Triggers.
  • CLR Triggers.
  • Logon Triggers.

NOT LIKE. The NOT LIKE operator in PostgreSQL provides a way to filter out records that do not match a certain pattern. It's the inverse of the LIKE operator. When you want to exclude rows based on a particular pattern, NOT LIKE is your tool.What is EXCEPT in SQL The EXCEPT clause in SQL helps users combine two SELECT statements and returns distinct rows from the first SELECT statement that are not available in the second SELECT statement. Its rules are similar to the UNION operator and can be compared to subtract operator in relational algebra.

MySQL provides a way to find both types of records, either matched or not, with a specific value. This feature is advantageous when we want to find records that need to be edited or reported on a spreadsheet. NOT LIKE operator in MySQL is used for pattern matching.

Can we use like and not like in SQL : The LIKE and NOT LIKE expressions allow you to specify a set of similar values to be either returned or excluded from a query's results. LIKE can take two wildcards, % and _ which indicate either all characters or a single character.

What is not like in SQL Server : The NOT LIKE operator in SQL is used on a column which is of the varchar type. Usually, it's used with % , which is used to represent any string value, including the null character \0 . The string we pass on to this operator is not case-sensitive.

What are the 3 types of behavior triggers

The three types of behavioural triggers are:

  • External: Anything within a persons environment.
  • Internal: Are also referred to as Endogenous Triggers.
  • Synthetic: These are intentionally constructed by a person and therefore the person has control over when, where, and how they experience the trigger.


The choice between the LIKE and ILIKE operators depends on your use case and preference. Generally, you should use the LIKE operator if you want to perform a case sensitive pattern matching, and the ILIKE operator if you want to perform a case insensitive pattern matching.Given queries A and B, UNION returns all records returned by either A or B. EXCEPT returns all records in A but not in B. INTERSECT returns all records returned by both A and also by B.

How do I exclude a value in SQL query : In SQL, you can exclude multiple records from a query result using the “Not in” or “not exists” clauses. Expample Not in SELECT * FROM table_name; WHERE column_name; NOT IN (value1, value2, …);