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...
These are just basic questions and you can check the data analyst interview questions here. CLICK HERE TO GET INTERVIEW QUESTIONS FOR TCS… Following are some important Interview Questions for SQL : 1.What is SQL?Where SQL is used? Answer: SQL is Structured Query Language, which is 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 ...
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...
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1、查询“001”课程比“002”课程成绩高的所有学生的学号; selecta.S#from(selects#,scorefromSCwhereC#='001') a,(selects#,score fromSCwhereC#='002') b wherea.score>b.scoreanda.s#=b.s#; 2、查询平均成绩大于60分的同学的学号和平均成绩; ...
101 Practice SQL Questions: Basic to Advanced Curtis Norman 4.7 (547) SQL Programming Basics Global Academy 4.5 (24,113) SQL Query Training for SAP Business One Michael Taylor 4.5 (544) Bestseller More SQL Courses What Is SQL? Structured Query Language, in it’s purest form, is a fram...
Basic plumbing of related objects worker_addressis of course simply the address of the Worker class instance we’re looking at. It is bound to the SOS_Scheduler living atscheduler_addressand (once out of the SystemThreadDispatcher) to the SystemThread class instance atthread_address. ...