The use of comparison operators like <,> or = can be done in a subquery. These kinds ofSQL Interview Questionsare a bit difficult to understand and answer accordingly. There are a lot ofSQL Interview Questionsapart from this, which the candidates must practice qualifying for the interview. Fo...
Before choosing the RAID (Redundant Array of Independent Disks) we should have a look into usage of SQL Server files. As a basic thumb rule “Data Files” need random access, “Log files” need sequential access and “TempDB” must be on a fastest drive and must be separated from data a...
Bit datatype is used to store boolean information like 1 or 0 (true or false). Untill SQL Server 6.5 bit datatype could hold either a 1 or 0 and there was no support for NULL. But from SQL Server 7.0 onwards, bit datatype can represent a third state, which is NULL. 5. Define ...
SQL INTERVIEW QUESTIONS AND ANSWERS 12 | P a g e Define SQL Update Statement ? SQL Update is used to update data in a row or set of rows specified in the filter condition. The basic format of an SQL UPDATE statement is ,Update command followed by table to be updated and SET command ...
6.What are different types of indexes?(Mostly asked in Interview Questions For SQL) Answer: There are following types of indexes used while Indexing in SQL: 1.Normal index 2.Unique Index 3.Bit Map Index 4.Composite Index 5.B-Tree Index(Oracle considered Normal indexes as B-Tree Indexes) ...
10. Basic difference between stored procedure and user defined function? 11. See we have a simple query that’s calling a static function, like “Select * from employee where joiningdate < getstaticdate()”? Does it call function for every time or only for matched rows? How you tune this...
You will see two files one for the 32-bit system (SQLEXPRADV_x86_ENU.exe) and the other for the 64-bit system (SQLEXPRADV_x64_ENU.ex Read More Top SQL Server Interview Questions and Answers Summary The SQL Server Express edition is one of the entry-level and free-to-use editions ...
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l One machine provides the basic services and the second is available to run the service when the primary system fails.l The primary system is monitored periodically to check if it works. This monitoring may be performed by the failover computer or an independent system also called as cluster...