what is the use of double ampersand (&&) in sql queries?
No Answer is Posted For this Question
Be the First to Post Answer
what are myisam tables? : Sql dba
Is join and inner join the same?
what are date and time data types in mysql? : Sql dba
What are the types of operators available in sql?
What cursor type do you use to retrieve multiple recordsets?
17 Answers Apollo, CTS, IonIdea, Microsoft, Oracle, TCS, Vmoksha, Wipro,
How delete all data from table in sql?
how to create object in plsql
what is try_catch block in procedure
What is sorting in sql?
Explain the commit statement.
How to create a menu in sqlplus or pl/sql?
What is the difference between UNIQUE CONSTRAINT and PRIMARY KEY? 1. There is no difference. 2. A PRIMARY KEY cannot be declared on multiple columns. 3. A UNIQUE CONSTRAINT cannot be declared on multiple columns. 4. A table can have multiple PRIMARY KEYS but only one UNIQUE CONSTRAINT. 5. A table can have multiple UNIQUE CONSTRAINTs but only one PRIMARY KEY.
Oracle (3259)
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)