Fill in the blanks:
1. The types of languages used for creating and manipulating the data in the
Database are ___________________ & ________________.
2. A____________________is a standard for commands that
define the different structuresin a database.
3. A ______________ is a language that enables users to access and
manipulate data in a database.
4. A _____________ is a part of DML involving information retrieval only.
5. A popular data manipulation language is _________________.
6. __________ are the basic building blocks of a database.
7. There are __________ types of Relationships in a table.
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Answers
1ans:- procedural programming and declarative programming.
2ans:- Data Definition Language (DDL).
3ans:- manipulation language.
4ans:- Quary language.
5ans:- Structured Query Language (SQL).
6ans:- Tables
7ans:- Three
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Answer:
1. DDL and DML statements are used for creating and manipulating the data in databases. SQL commands are commonly used for creation and manipulation of data in database. SQL commands are of four types DDL, DML, DCL and TCL.
2. Data Definition Language (DDL) is a standard for commands that define the different structures in a database. DDL statements create, modify, and remove database objects such as tables, indexes, and users. Common DDL statements are CREATE, ALTER, and DROP.
3. DML
A DML is a language which enables users to access and manipulate data
4. query language
A query language is a portion of a DML involving information retrieval only. The terms DML and query language are often used synonymously
5. Structured Query Language (SQL)
A popular data manipulation language is that of Structured Query Language (SQL), which is used to retrieve and manipulate data in a relational database. Other forms of DML are those used by IMS/DLI, CODASYL databases, such as IDMS and others.
6. Entity, attribute and relationships are the basic blocks of database
7. There are three specific types of relationships that can exist between a pair of tables: one-to-one, one-to-many, and many-to-many. The tables participate in only one type of relationship at any given time. (You'll rarely need to change the type of relationship between a pair of tables.
Explanation: