You can achieve this with the help of INFORMATION_SCHEMA.TABLES. Use the date_sub() with interval. The syntax is as follows −SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE DATE_SUB(NOW(), INTERVAL -1HOUR) < ‘UPDATE_TIME’;Now you can check the above syntax. Here is the query to find the tables modified in the last hour −mysql> select ... Read More

You can use aggregate function count() with group by. The syntax is as follows.select yourColumnName, count(*) as anyVariableName from yourtableName group by yourColumnName;To understand the above syntax, let us create a table. The query to create a table is as follows.mysql> create table CountSameValue -> ( -> Id int, -> ... Read More

Before getting into an example, we should know what is toast in android. Toast is subclass for  java.lang.Object and used to show a short message for a short period of time after that is going to disappear.This example demonstrates how to change the position of Toast in Android.Step 1 - ... Read More

You cannot do select IN range. For the same result, use BETWEEN. Let us see an example −IN(start, end): It means that the intermediate value between start and end won’t get displayed. For the above logic, you can use BETWEEN.BETWEEN clause is inclusive, for example, suppose there are 1, 2, ... Read More

A ternary conditional operator looks like ?: in programming language like C, C++, Java etc. The syntax is as follows −(yourCondition) ? statement1:statement2;In the above syntax, if yourCondition becomes true then statement1 will evaluate and if yourCondition becomes false then statement2 will evaluate.But the above syntax does not work in ... Read More

To view stored procedure/function definition in MySQL, you can use show command. The syntax is as follows −SHOW CREATE PROCEDURE yourProcedureName;To understand the above syntax, you can create a procedure and check that definition. Let us create a stored procedure −mysql> delimiter // mysql> create procedure AllRecords()    -> begin ... Read More

You can count all rows per table with the help of aggregate function count (TABLE_ROWS) from informatio_schema.tables. The syntax is as follows −SELECT table_name, TABLE_ROWS FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'yourDatabaseName';Now you can apply the above syntax to get all rows per table. The query is as follows −mysql> SELECT ... Read More

This example demonstrates how to make a smooth image rotation in Android.Step 1 - Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 - Add the following code to res/layout/activity_main.xml.         ... Read More

A Set is a generic set of values with no duplicate elements. A TreeSet is a set where the elements are sorted.A HashSet is a set where the elements are not sorted or ordered. It is faster than a TreeSet. The HashSet is an implementation of a Set.Set is a ... Read More

Cyclic Redundancy Check (CRC)Cyclic Redundancy Check (CRC) is a block code that was invented by W. Wesley Peterson in 1961. It is commonly used to detect accidental changes to data transmitted via telecommunications networks and storage devices.CRC involves binary division of the data bits being sent by a predetermined divisor ... Read More