<xsl:if> tag specifies a conditional test against the content of nodes. Declaration Following is the syntax declaration of <xsl:if> element. <xsl:if test = boolean-expression > </xsl:if> Attributes Sr.NoName & Description1testThe condition in…
SQL NULL is a term used to represent a missing value. A NULL value in a table is a value in a field that appears to be blank. Whenever we…
One of the most important function in PKI is the hashing function. A hash function maps the data of any arbitrary size to data of fixed size. Bitcoin uses SHA-256…
Whenever there is a requirement to retrieve data from multiple tables using a single query, you can use JOINS from RDBMS. You can use multiple tables in your single SQL…
InDesign offers more than a few ways to import images into your document. Of course, you can copy paste between image programs and InDesign but it is better to use…
Public Key Cryptography or in short PKI is also known as asymmetric cryptography. It uses two pairs of keys - public and private. A key is a some long binary…
The SQL SELECT command fetches data from the HSQLDB table whenever there is a requirement that follows a particular order while retrieving and displaying records. In that case, we can…
The Bitcoin was introduced in this world by Satoshi Nakamoto through a research-style white paper entitled Bitcoin: A Peer-to-Peer Electronic Cash System in the year 2008. The Bitcoin not only solved the…
There is a WHERE clause in the RDBMS structure. You can use the WHERE clause with an equal to sign (=) where we want to do an exact match. But…
Find/Change is one of those functions that is simple but extremely powerful. As the name suggests, the Find/Change function lets you find your query and change to something else. You can find…