'Primary key constraint' presentation slideshows

Chapter 25 Java Database Programming

841 views • 69 slides

SQL

727 views • 66 slides

Chapter 37 Java Database Programming

853 views • 60 slides

Chapter 34 Java Database Programming

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Chapter 37 Java Database Programming

767 views • 60 slides

Chapter 34 Java Database Programming

605 views • 60 slides

Chapter 9 Data Integrity Constraints

Chapter 9 Data Integrity Constraints. Objectives. Learn the types and the uses of constraints Examine the syntax and options for creating constraints Work with practical examples of creating, modifying, and dropping constraints Query database dictionary views to monitor constraints.

656 views • 40 slides

Chapter 9 Data Integrity Constraints

Chapter 9 Data Integrity Constraints. Objectives. Learn the types and the uses of constraints Examine the syntax and options for creating constraints Work with practical examples of creating, modifying, and dropping constraints Query database dictionary views to monitor constraints.

654 views • 40 slides

Data Integrity Constraints

Data Integrity Constraints. Objectives. Learn the types and the uses of constraints Examine the syntax and options for creating constraints Work with practical examples of creating, modifying, and dropping constraints Query database dictionary views to monitor constraints.

470 views • 39 slides

The Relational Model

362 views • 36 slides

Oracle 11g: SQL

Oracle 11g: SQL. Chapter 4 Constraints. Objectives. Explain the purpose of constraints in a table Distinguish among PRIMARY KEY, FOREIGN KEY, UNIQUE, CHECK, and NOT NULL constraints and the appropriate use for each constraint

677 views • 35 slides

Oracle 11g: SQL

Oracle 11g: SQL. Chapter 4 Constraints. Objectives. Explain the purpose of constraints in a table Distinguish among PRIMARY KEY, FOREIGN KEY, UNIQUE, CHECK, and NOT NULL constraints and the appropriate use for each constraint

395 views • 35 slides

SQL Data Definition

SQL Data Definition. Database Systems Lecture 5 Natasha Alechina. In This Lecture. SQL The SQL language SQL, the relational model, and E/R diagrams CREATE TABLE Columns Primary Keys Foreign Keys For more information Connolly and Begg chapter 6 Ullman and Widom 3.2, 6.6.

611 views • 26 slides

SQL Data Definition

SQL Data Definition. Database Systems Lecture 5 Natasha Alechina. In This Lecture. SQL The SQL language SQL, the relational model, and E/R diagrams CREATE TABLE Columns Primary Keys Foreign Keys For more information Connolly and Begg chapter 6 Ullman and Widom 3.2, 6.6.

275 views • 26 slides

PART 3

PART 3. SQL. Commit & rollback. Insertions, deletions and updations into or from a database can be reversed or rolled back. Rollback; Inserts, deletes and updates cannot be made final until committed. That is they will not affect the table Commit;

355 views • 24 slides

Database Constraints

Database Constraints. Database Constraints. Database constraints are restrictions on the contents of the database or on database operations Database constraints provide a way to guarantee that: rows in a table have valid primary or unique key values

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What Are Constraints?

What Are Constraints?. Constraints enforce rules at the table level. Constraints prevent the deletion of a table if there are dependencies. The following constraint types are valid in Oracle: NOT NULL UNIQUE PRIMARY KEY FOREIGN KEY CHECK. Constraint Guidelines.

411 views • 10 slides