The foreign_key_checks are session based. Now, we can say that they are for scope i.e. local or global. Here is an example demo of local or global. Both are scopes and we can set this for session.Let us set the scope −mysql> set foreign_key_checks = 0; Query OK, 0 rows ... Read More

Similarity between two strings can be checked with the help of ‘strcmp()’ function. Here are the conditions.If both strings are equal, then it returns 0.If first string is less than the second string, it returns -1.If first string is greater than the second string, it returns 1.Here is an example.Case ... Read More

The choice depends upon the database. In ORACLE database, an empty string is converted to NULL.In MySQL, the usage of an empty string is better as compared to NULL. It is easy to check for an empty string with some boundary conditions, while this cannot be done with NULL. To ... Read More

In this mode, the data is directly copied from the given address to the register. This absolute addressing mode is also called a direct addressing mode. For example LDA 3000H: means the data at address 3000H is copied to register A.LDA 4050HLet us consider LDA 4050 Has an example instruction ... Read More

An 8-bit register in which the tracks of active interrupt requests are kept. Whenever activation of an interrupt request input is done the bit corresponding in IRR register is set to 1. For example, if we activate the IR4 and IR6 inputs bits no 4 and 6 of IRR are set to ... Read More

Now in this topic we assume that 8085 is the processor which is used in this microcomputer system. In this slave, no 8259 slaves are used. We should examine properly before 8259 PIC is used in the microcomputer system for performing the interrupt control application. 8259 is configured in such ... Read More

In order to check if a String has only unicode letters in Java, we use the isDigit() and charAt() methods with decision making statements.The isLetter(int codePoint) method determines whether the specific character (Unicode codePoint) is a letter. It returns a boolean value, either true or false.Declaration − The java.lang.Character.isLetter() method ... Read More

In order to get the power of a number in Java, we use the java.lang.Math.pow() method. The Math.pow(double a, double b) method accepts two arguments of the double data type and returns a value of the first parameter raised to the power of the second argument.Declaration - The java.lang.Math.pow() method ... Read More

In order to get the hyperbolic sine of a given value in Java, we use the java.lang.Math.sinh() method. The sinh() method accepts an argument in radians and returns the hyperbolic sine of the argument which acts as the angle.Declaration −  The java.lang.Math.sinh() is declared as follows −public static double sinh(double ... Read More

In order to get the hyperbolic tangent of a given value in Java, we use the java.lang.Math.tanh() method. The tanh() method accepts an argument in radians and returns the hyperbolic tan of the argument which acts as the angle.Declaration −The java.lang.Math.tanh() is declared as follows −public static double tanh(double x)where, ... Read More