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What is the function of a Foreign Key in SQL?
A Foreign Key in SQL is used to establish a relationship between two tables. It ensures referential integrity by enforcing that values in a column (or columns) in one table must match the values in a primary key in another table. This helps maintain consistency and data integrity across linked tables.
What SQL clause is used to restrict the rows returned by a query?
The WHERE clause is used to restrict the rows returned by a query in SQL. It allows you to specify a condition that must be met for a row to be included in the result set.
Explain various DDl commands in SQL?
DDL (Data Definition Language) commands in SQL are used to define the structure of database objects. Some common DDL commands include: CREATE: Used to create database objects like tables, views, indexes, etc. ALTER: Used to modify the structure of existing database objects. DROP: Used to delete database objects. TRUNCATE: Used to delete all records from a table.
In one sentence summarize the main function of the executive branch?
The main function of the Executive Branch is to run the government.
The average income l in dollars of a lawyer with an age of x years is modeled with the following function I-425x245500x-650000?
It looks like there may be a typo in the function you provided. If the correct function is I(x) = -425x^2 + 245500x - 650000, then it represents the average income in dollars of a lawyer based on their age x in years. This is a quadratic function where x is the age of the lawyer.
What is a character function in SQL?
Spongebob
In SQL what is the function of the union operator?
In SQL, the function of the union operator is to combine the result of two or more select-statements. The union operator is a very useful tool when coding SQL.
How to define a user defined function in SQL?
Not possible in SQL, but possible in many vendor-specific SQL-based languages like Oracle PL/SQL.
What does the SQL Max function do?
The "SQL Max function" is a computer programming term, which can be used in spreadsheets to give the highest value from the currently selected column.
What is the function of SQL compare?
SQL compare is used to compare and synchronize data bases.It can be downloaded as a piece of software.Databases can be compared by SQL compare and synchronized.
What is the function of an SQL server replication?
The function of an SQL server replication is to restrict the control that a user has. Limiting these possibilities ensures safety on networks and with untrusted users.
What is the function of the bootstrap loader?
To Test Your hardware on boot
What are function bus system in the database?
What are the two major components of SQL What function do they serve
What does the replace command perform in SQL?
The replace command function in SQL preforms comparisons on the collation of an input or inputs. It also replaces the text in a string of the SQL server.
How efficient is the sqlldr utility with regard to loading large amounts of data?
The SQL-Loader utility is really efficient when attempting to load large amounts of data. The SQL-Loader is very fast compared to other similar utilities. This utility has been proven to load 2.5 records from a drive within four minutes, which is incredibly fast.
Difference between sql function and sql procedure?
Function is must be return the value but procedure cannot be returned, for more information please visit the link : http://youropensource.com
What is the function of Microsoft SQL?
SQL is a relational database management system. The very first function of this software is to keep the data safe and retrieve it When it is asked by other software applications.
