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SQL Server Questions & Answers

Get a modern-day SQL Developer Training that will help you learn the basics of database querying, Microsoft SQL and the best-practices of Database Management to gain confidence with our Online SQL Certification and surmount a trending career field

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How do HMAC-SHA256(key, data) and SHA256(key + data) differ?

Is there anything different about how secure these two hashing algorithms (HMAC-SHA256 and SHA256) are? Does HMAC "fuse" the data and the key in a…

SQL Server

1 Answer · 2.0K Views · Answered ✓

Asked by: Aashna Saito · 4 years ago

what is the main difference between a virus and a trojan?

As far my understanding goes: A virus is a program that does not self replicate and relies on the host file being spread. It has malicious intent,…

SQL Server

1 Answer · 1.4K Views · Answered ✓

Asked by: alex Duncan · 4 years ago

SQL Server roles

Recently I was asked the question - what is the difference between Standard Server roles and Fixed server roles.I know Fixed Server roles include…

SQL Server

1 Answer · 873 Views · Answered ✓

Asked by: Aashish chaursiya · 4 years ago

When should I rebuild indexes?

When should I rebuild the indexes in my relational database (SQL Server)? Is there a case for rebuilding indexes on a regular basis?

SQL Server

1 Answer · 544 Views · Answered ✓

Asked by: Camellia Kleiber · 5 years ago

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