Frequent question: Which of the following SQL command can be used to modify existing data in database table Mcq?

Which of the following SQL command can be used to modify existing data in a database table * 1 point modify update change new?

UPDATE statement is a data manipulation language to change/modify the data/records in a table or view.

Which command is used to modify existing data in the table?

Answer: Alter command. The alter command is used when we want to modify a database or any object contained in the database.

Which SQL statement is used to modify existing data in a database?

The SQL UPDATE Statement

The UPDATE statement is used to modify the existing records in a table.

Which of the following SQL statement can be used to modify a table in order to delete column2 from a table?

The SQL ALTER TABLE command is used to change the structure of an existing table. It helps to add or delete columns, create or destroy indexes, change the type of existing columns, or rename columns or the table itself.

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Which command is used to modify existing?

Discussion Forum

Que. Which of the following SQL command can be used to modify existing data in a database table?
b. UPDATE
c. CHANGE
d. NEW
Answer:UPDATE

Which command is used to modify existing rows?

Answer: Alter command is used to modify the records of the table. Explanation: The alter command is used for modifying the existing database, tables, its views or any other database objects.

Which SQL command is used to change the data in the row of database table?

ALTER Command : ALTER SQL command is a DDL (Data Definition Language) statement. ALTER is used to update the structure of the table in the database (like add, delete, modify the attributes of the tables in the database).

Which command is used to modify a table in SQL?

The SQL ALTER TABLE command is used to add, delete or modify columns in an existing table. You should also use the ALTER TABLE command to add and drop various constraints on an existing table.

What are the different SQL commands for modifying the data in a database and the database itself?

Key Points

  • Use CREATE and DROP to create and delete tables.
  • Use INSERT to add data.
  • Use UPDATE to modify existing data.
  • Use DELETE to remove data.
  • It is simpler and safer to modify data when every record has a unique primary key.
  • Do not create dangling references by deleting records that other records refer to.

Which SQL statement is used to fetch the data from a database table?

The SQL SELECT statement is used to fetch the data from a database table which returns this data in the form of a result table. These result tables are called result-sets.

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Which SQL statement is used to extract data from a database?

The SELECT statement is used to select data from a database.

Which command is used to change the number of columns in a table?

Answer: The ALTER TABLE statement is used to add, delete, or modify columns in an existing table.