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How to generate unique key of random numbers in PHP

Hello Friends, If you are looking to generate unique random string of numeric numbers. Please follow the below code for the same. <?php $uniqueKey = generateUniqueKey(); /** * generate unique key * @return unique key */ publ...

Different Types of SQL Keys

SQL Keys play a very important role in database related task in SQL like retrieve data/record from the table according to the requirement.  A key can be defined as a single or combination of multiple fields/columns in a table. With the help ...

Solr schema unique key id

Solr schema.xml have a default unique key which is "id". This field has "string" type hence can not be used for sorting. We can not change its type as it is required as "string" because if you have enabled the QueryElevationComponent in solrconf...
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