SQL Table Questions and Answers

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Database table: Table contains records in the form of rows and columns. A permanent table is created in the database you specify and remains in the database permanently, until you delete it.

Syntax:

Create table

Create table TableName (ID INT, NAME VARCHAR(30) )

Drop syntax:

 drop table TableName

Select Syntax:

Select * from TableName

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SQL provides an organized way for table creation:

Syntax

Create table TableName (columnName1 datatype, columnName2 datatype )

The following is an example of creating a simple table.

 create table Info   
(   
   Name varchar(20),   
   BirthDate date,   
   Phone nvarchar(12),   
   City varchar(20)   
)

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To delete a table in SQL Server, you can use the DROP TABLE statement. Make sure you have the necessary permissions to perform this action, as it will permanently remove the table and its data from the database. Here's the basic syntax:


DROP TABLE [schema_name.]table_name;

Replace schema_name with the name of the schema where the table resides (if applicable), and replace table_name with the name of the table you want to delete.

For example, to delete a table named "Employees" from the "dbo" schema:


DROP TABLE dbo.Employees;

If the table has any associated constraints, triggers, or indexes, you may need to drop those objects first before you can successfully delete the table. Be cautious when using this command, as data loss is irreversible.

Remember to take a backup of your database before performing any critical operations like dropping a table, especially in a production environment.