DBMS RDBMS SQL Oracle Questions And Answers
DBMS RDBMS SQL Oracle Questions And Answers :(26 Attachments) SQL INTERVIEW QUESTIONS AND ANSWERS :(1 Attachment) RDBMS INTERVIEW QUESTION AND ANSWER :(1 Attachment) Oracle Interview Questions Answers :(1 Attachment) Preparing for DBMS interview? wondering what will be the questions be like? We provide you with the best helping guide.The attatchment includes DBMS interview questions and answers for the best of your preprations. envolving topics such as database or database management systems (DBMS), difference between file and database, etc. video link-https://www.youtube.com/watch?v=LJB25dveT3A
SQL CHECK Constraint
SQL CHECK Constraint The CHECK constraint is used to limit the value range that can be placed in a column. If you define a CHECK constraint on a single column it allows only certain values for this column. If you define a CHECK constraint on a table it can limit the values in certain columns based on values in other columns in the row. ________________________________________ SQL CHECK on CREATE TABLE The following SQL creates a CHECK constraint on the "Age" column when the "Persons" table is created. The CHECK constraint ensures that you can not have any person below 18 years: MySQL: CREATE TABLE Persons ( ID int NOT NULL, LastName varchar(255) NOT NULL, FirstName varchar(255), Age int, CHECK (Age>=18) ); SQL Server / Oracle / MS Access:
SQL Hosting
SQL Hosting If you want your web site to be able to store and retrieve data from a database, your web server should have access to a database-system that uses the SQL language. If your web server is hosted by an Internet Service Provider (ISP), you will have to look for SQL hosting plans. The most common SQL hosting databases are MS SQL Server, Oracle, MySQL, and MS Access. ________________________________________