DATABASE TESTING PDF
Database Testing i. About the Tutorial. Database testing includes performing data validity, data integrity testing, performance check related to database and. Database Testing Tutorial in PDF - Learn Database Testing starting from Overview, Types, Processes, Techniques, Scenarios, Objects, Data Integrity, Data. Motivation on database applications testing. • Testing of database applications mostly consist in checking the database state following an operation in some.
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Database Testing Tutorial using SQL. Tutorial Database Testing using SQL. 1. INTRODUCTION. Why back end testing is so important. Characteristics of . Testing the backend databases like comparing the actual results with expected results. 2). What is database testing and what we test in database testing. Database testing performs the tests to verify the exact data values that have been retrieved/ fetched from the database either by the desktop-based application or.
Whether database is able to store or export blank or null value. Checking the compatibility of the data with the software and hardware, especially the outdated or obsolete one. Stored Procedures: Whether the execution of stored procedures or functions are outputting correct and reliable result sets.
Manual execution of the stored procedures, updates the database tables. To ensure that correct and standard coding conventions is adopted and followed for the stored procedures. Does input data is able to encompass all sort of loops and conditions.
To ensure proper and standard error and exception handing mechanism. Verifying and validating the attributes and parameters associated with each procedure. Evaluating the working or execution of all stored procedures in the presence of blank or empty database.
What is Database Testing?
Triggers: Similar to stored procedures, adoption and implementation of correct and standing conventions for triggers, by the developers is being evaluated. To ensure that the execution of a trigger updates the data in the database, successfully. If the triggers are being executed for the DML transaction. Checking the execution of a trigger in the event of addition or deletion or update in the data.
To check whether the execution of a stored procedure is followed by the firing of a trigger. Field Validation: Whether the database system is allowing the entry and storage of null data value or not.
To ensure the appropriate and sufficient length of each field to import and accommodate respective data value of varying range. Verifying and validating the data type for each field against specified and given specifications. To check whether all identical fields have similar name throughout the database and tables.
To locate any computed field if any in the database and tables.
Constraints: Whether the primary key and the foreign key constraints is specified and created for each table or not.
Proper and valid referencing of foreign key between the database table has been done or not.
Introduction to Database Testing
Whether the null value is being accepted as a valid input both for the primary and the foreign key. To ensure primary key data type of a table is same as to that of corresponding foreign key of other table. If any unused stored procedures are present in the database.
Whether the development team has covered all of the loops and conditions by passing the input to applications in the procedures. If the TRIM operations are applied properly when the data is fetched from required tables in the databases. Check the validation of the overall integration of the stored procedure modules as per the given requirements of the application under test.
Error handling and exception mechanisms are followed. Trigger Testing In the trigger testing, a tester needs to ensure the below mentioned objectives?
If the coding conventions are followed during the coding phase of the triggers. If the trigger updates the given data correctly once they have been executed.
See if the triggers executed meets the given conditions. Tables and Column testing The key areas covered in this type of testing are : Validation of the data types in the database to field values in the front-end application. Validation of the length of data field in the database to the length of data types in the given application.
Check if there are any unmapped tables or columns in the database from the application field objects.
Naming the conventions of the database tables and columns which are verified, if they are in accordance with the business requirement or not. Validation of the Keys and Indexes in the given database,that is the primary and foreign keys in the tables are defined as per requirement. Checking if the primary keys and their corresponding foreign keys are same in the two tables.
Length and the data type of the keys and indexes are maintained as per requirement. Database Server Check Database Server check involves the following verification? Whether the database server can handle the expected number of transactions as per the business requirement. Whether the configuration details of database servers meets the business requirement. Whether the user authorization is maintained as per the requirement.
Functional Testing Functional testing is performed keeping in mind the end-user point of view;if the required transactions and operations can be run by the end-users and meet the business specifications.
What is Database Testing Types?
Black Box Testing Black Box Testing involves verification of the integration of a database and to check the functionality.
The test cases are very simple and are used to verify incoming data and the outgoing data from the function. Various techniques such as equivalence partitioning and boundary-value analysis,cause-effect graphing technique are used to test the functionality of the database.
Its advantages are as follows : It is fairly simple and cn be performed in the early stages of development. Cost of developing the test-cases is very less when compared to white-box testing.
Its disadvantages are as follows : Few errors cannot be detected It is not known how much program needs to be tested. White Box Testing This deals with the internal structure of a database and the specification details are hidden from its users. It also involves the testing of database triggers and the logical views, which are going to be in the support database refactoring. This performs module testing of a database function,views,triggers, SQL queries etc. This type of testing validates the database tables, database schema,data models, etc.
This checks the rules of Referential integrity. This selects default table values to check on the database consistency.In the Microsoft SQL Server, a tester will be able to write simple queries and to check and validate schemas in the database. Validation of the output data by using both manual as well as automation procedures.
Database Testing Types - Database Testing
Whether the data has been roll backed at all in the condition that the transaction has not been executed successfully and multiple heterogeneous databases have been involved in the transaction in question.
Constraints: Whether the primary key and the foreign key constraints is specified and created for each table or not. Important load testing tools are load runner, win runner and JMeter.
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