RENAME COLUMN
ALTER COLUMN
CHANGE COLUMN
MODIFY COLUMN
Shows the structure of an index
Displays a list of all indexes in a database
Shows the indexes associated with a specific table
Deletes an index from a table
Provides information about the execution plan of a query
Exports data from a table
Adds explanatory comments to a query
Lists all foreign keys in a database
Retrieves the last record in a table
Returns the last ID generated by an AUTO_INCREMENT column
Retrieves the last value in a column
Returns the last date and time a record was modified
Filters rows based on a condition before grouping
Groups rows based on a condition
Applies a condition to individual records after grouping
Sorts the result set in descending order
DROP INDEX
REMOVE INDEX
DELETE INDEX
ERASE INDEX
Returns the current date and time
Returns the current date
Converts a string to lowercase
Retrieves the highest value in a column
Disables foreign key checks for the current session
Sets the foreign key values to zero in the specified table
Removes all foreign key constraints from the database
Sets the value of a foreign key column to zero
POSITION()
LOCATE()
SUBSTRING_INDEX()
STRPOS()
Removes leading and trailing spaces from a string
Concatenates two or more strings
Converts a string to uppercase
Rounds a numeric value to the nearest integer
Refreshes the database indexes
Removes all privileges from a user
Reloads the privileges from the grant tables in the mysql system database
Deletes all records from a table
ALTER TABLE
UPDATE TABLE
Retrieves the sound of a column value
Retrieves a specific substring from a string
Converts a string to a phonetic code
TOTAL ROWS
COUNT ROWS
NUMROWS
SELECT COUNT(*)
Truncates a string to a specified length
Extracts a substring from a string
Replaces a specified substring with another substring
ADD PRIMARY KEY
CREATE PRIMARY KEY
SET PRIMARY KEY
PRIMARY KEY TABLE
To lock a specific row in a table
To prevent other sessions from accessing a table for a specific purpose
To modify the structure of a table
To unlock a table for other sessions
USER()
CURRENT_USER()
HOST_USER()
SESSION_USER()
Checks if a value is NULL
Converts a value to uppercase
Returns the first non-null expression among its arguments
Calculates the average value for a column
To discard all changes made in a transaction
To refresh the table cache
To delete all records from a table
To optimize and flush the changes to disk for all tables
