what is joins please explain breffly ??
Answer / sravanthi
The Join keyword is used to query data from 2 or more
tables based on the relationship between the columns in the
table.
1. Join : Returns records when there is atleast one matched
record in both the tables.
2. Left Join : Returns all the records of the left table
irrespective match records in both the tables.
3. Right join : It is just reverse case of left join.
4. Full Join : Returns all the records from both the tables
irrespective matching.
| Is This Answer Correct ? | 17 Yes | 0 No |
Explain sql server service broker?
What is a document index?
How does SSIS(Sql Server Integration Services) deffer from DTS(Data Transformation Services)?
What is Check point? Explain in Brief what it will do?
Explain boyce and codd normal form(bcnf)?
How to concatenate two character strings together?
What are acid properties of transaction?
select empid empname from employee What is the result for the about query?
What is a coalesce function?
It is important form e to get the information from log files of applications executed by the task scheduler? Does sql studio save these log files? : sql server management studio
What is the purpose of update statistics and scope_identity() function?
What are sql dirty pages?
Oracle (3253)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)