7/22/2023 0 Comments Mysql rename table![]() IN: This command helps in filtering the data based on a value match.Syntax: SELECT FROM WHERE TRUE OR FALSE Example: SELECT * FROM Comp WHERE c_COUNTRY="INDONESIA" OR c_COUNTRY = ”MALAYSIA" OR: This statement combines the data from the table for the specific condition.Syntax: SELECT FROM WHERE AND Example: SELECT Stu_NAME, FROM Comp WHERE c_id=100 AND c_COUNTRY="INDONESIA" AND: This condition is used to filter the data based on a particular condition.Syntax: SELECT * FROM WHERE Example: SELECT * FROM Comp WHERE c_id= 100 WHERE: This command is used to filter the data for finding a specific value.Syntax: SELECT DISTINCT FROM Example: SELECT DISTINCT Stu_name FROM Comp SELECT DISTINCT: This statement is used to retrieve the distinct data from the table.SELECT: SELECT statement is used to retrieve the data from the tables.This statement removes all the specific data from the database.īelow is an example to DROP a table named “MyProfile”.Įxample mysql> DROP TABLE MyProfile Basic MySQL Queriesįollowing are some of the basic MySQL Query Commands. When we wish to remove all of the data from a database without deleting the table structure, we use this command.īelow is an example to TRUNCATE the data in the table named “MyProfile”.Īn existing table in MySQL can be deleted using the DROP TABLE statement. With the MySQL TRUNCATE statement, all the data get deleted, leaving the structure unchanged. Syntax: mysql> RENAME OLD_Tablename to NEW_Tablename īelow is an example to RENAME an old table named “Mytable” to a new table named “MyProfile”.Įxample mysql> RENAME Mytable to MyProfile MySQL TRUNCATE TABLE Statement In MySQL, this RENAME TABLE statement is used to change or rename the name of the table that has been created by mistake or needs to change the table name as per the requirement. Want to get certified in SQL? Go through our blog on SQL Server Certification and be informed! MySQL RENAME TABLE Statement To MODIFY any data table of a column in the table, you need to use the following syntax which is given below.īelow is an example to Change or Modify the data type of a column named “DOB” in the table “Mytable”. To DELETE any column in the table, you need to use the syntax which is given below.īelow is an example to DROP a column named “Address” in the table “Mytable”. To ADD any column in the table, you need to use the syntax which is given below.īelow is an example to ADD a column named “Address” in the table “Mytable”. ![]() To add, delete, or modify columns in an existing table the ALTER TABLE statement is used. Wish to crack SQL interviews? Intellipaat’s Top DB2 interview questions are meant only for you! MySQL ALTER TABLE Statement For example varchar, integer, date, etc.īelow is an example of a table called “Mytable” that has the column names UserID, FirstName, LastName, and JobPosition. The datatype field specifies the type of data the column can have. Note: The column field specifies the names of the table’s columns. To create a new table in a database the CREATE TABLE statement is used.
0 Comments
Leave a Reply. |