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The SQL command that can be used to retrieve all data from a table is the SELECT
Ex:
Let us say we have a table called employee_master which contains 3 columns emp_name, emp_number, date_of_joining you can retrieve all the data by using the below command
SELECT * FROM employee_master
or
SELECT emp_name, emp_number, date_of_joining FROM employee_master
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∙ 14y ago
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What does a pointer in a data table do?
A pointer in a data table is a reference that points to the location of a specific data element in the table. It provides a way to access and manipulate the data efficiently by indicating where the data is stored in memory. Pointers are commonly used for navigation and accessing elements in data structures like arrays or linked lists.
What type of control in a form can display data from database table?
A DataGridView control in a Windows Forms application can display data from a database table. You can bind the DataGridView to a data source such as a DataTable or a collection of objects, and it will automatically display the data from the database table in a tabular format.
What is the advantage of using data form with table information?
Using a data form with table information can make it easier to visually organize and input data into specific fields. It can also help with data validation and error checking, as well as facilitate filtering and sorting of the information within the table.
What clause of the select statement names the table that contains the data to be retrieved?
The FROM clause names the table that contains the data to be retrieved in a SELECT statement.
Is table content the same with index?
No, table content and index are not the same. Table content refers to the actual data stored in the table, while an index is a data structure that provides a quick look-up for specific columns in the table to improve search performance.
Define an entire new range as a data table?
data table command
What is a roll over state?
There are commands in database two delete data. Delete command delete the data from the table. DROP commands delete the whole table structure along with its data. To restore the deleted data we can use roll back command.There are two commands that we can use to delete the table or content of table. If we deleted wrong data by mistake , then we can restore it by using rollback command.
What is the difference between select into and createview command?
The SELECT INTO command creates a new table with data from an existing table whereas the CREATE VIEW command creates a view i.e., a virtual table from an existing table.
How is a table made up in a database?
A table in database can be created using create table command . Create command comes under data manipulation language.
What is the command to retrieve deleted data from any table in SQL?
rollback command can retrieve deleted data from a table, provided commit has not been performed after deleting the data. both rollback and commit are transaction control statements.
Which command will delete all data from a table and will not write to the rollback segment?
Truncate since it is DDL command
What is MySQL insert command?
The INSERT command in MySQL allows you to enter a new row of data to a table in your database.
What is queries in data base?
query is a request for retrive the information from the database.
What is the data structuer?
data structure is the way of organisise(storing) huge amount of data so that it is easy to retrive,update and delete the data.
How do you enter data into the table?
You can enter data into a table using the INSERT keyword. Ex: INSERT INTO emp_master VALUES ('11111', 'john', '30, Newport pkwy, NJ') The above command will insert one row of data into the emp_master table.
What is the different between a view and a create view?
View is a virtual table that do not have any data of its own but have data that is derived from another table called base table. Create view is the command used to create a view (virtual table).
Is corner the command used to make the size of the table columns reflect the data in the columns?
Tab?
