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Which SQL statement is used to delete data from a database?
The SQL statement used to delete data from a database is DELETE FROM table_name WHERE condition;. This statement deletes rows from the specified table based on the condition provided. Make sure to use caution when using DELETE statements as they permanently remove data from the database.
Which SQL statement is used to insert new data in a database?
Insert into
Which SQL statement is used to update data in a database?
The SQL statement used to update data in a database is the "UPDATE" statement. It allows you to modify existing records in a table by specifying the column and value you want to update based on certain conditions. Additionally, you can use the "SET" keyword to assign new values to specific columns in the table.
Which sql statement is used to update data from a database?
The SQL statement used to update data in a database is the UPDATE statement. It allows you to modify existing records in a table by specifying the columns and values to be updated based on certain conditions.
What is ETL and how is it used in data processing?
ETL stands for Extract, Transform, Load. It is a process used in data processing to extract data from various sources, transform it into a usable format, and load it into a target database or data warehouse for analysis and reporting.
What does ETL mean and how is it used in data processing?
ETL stands for Extract, Transform, Load. It is a process used in data processing to extract data from various sources, transform it into a format that is suitable for analysis, and then load it into a data warehouse or database for further use. ETL helps ensure that data is clean, consistent, and ready for analysis.
What is the importance of querying a database?
A query can be used to do things with the data. Mostly it is to extract information from the database, but they can also be used to delete, edit and update a database. Queries are very important and powerful aspect of a database.
What is ETL software used for?
ETL software stands for 'Extract, Transform and Load'. This software is used mainly to migrate data from one database to another. It is also used to convert database formats from one type to another.
What extracts data from tables based on a criterion or specific value?
A query is used to extract data from tables based on a criterion or specific value. Queries allow you to specify conditions to filter the data you want to retrieve, making it easier to extract the information you need from a database.
Why do you have databases?
We have database to store data in to it. We prefer to have database over FPS because they handle the data efficiently.
Which data structure used in database?
You create your own data structure in database.
A database object that retrieves specific data from one of more tables is a what?
A database object that retrieves specific data from one or more tables is called a query. Queries are used to extract information from databases based on specified criteria and are essential for data manipulation and reporting purposes.
