Can a table have no primary key?
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Interchange the value of a column Gender in a table where values are Male and Female. So, where the value is Male, it should changed to Female and Female to Male.
Is left join same as join?
table name: prod there are three fields in the table that are 1.proddate 2.prodQty 3.model Day wise prodQty is stored in the table prod write a query to display total prodqty in the year 2004 april.
explain the difference between myisam static and myisam dynamic. : Sql dba
Can we use ddl commands in pl sql?
how to insert the records in particular position
how to concatenate two character strings? : Sql dba
Do we need to create index on primary key?
1. how to use the check option constraints in sql query..? 2.how to add data in a complex query ? 3.is it possible to use commit or rollback or savepoint in triggers...if not why please explain with examples...? 4.what is the difference between meterialized view and normal view..how to create materialized view and how to use it..? 5.what is varray...? what is the advantage of the varray ? please expalin with a simpel example..i want to load into a table (student no and name and his marks..) please give example.. 6.what are the bulk bind exceptions...how to use bulk bind and how to use bulk collect..please explain with example... 7.what is for update of and where current of ...? 8 what is the use of nowait ? 9.please give an example for nocopy in a simple plsql query 10.create an index in a table...tellme how to use the index in a where clause to do performance tunning...
Who is the owner of mysql database?
How does rowid help in running a query faster?
Can we use the cursor's to create the collection in PL/SQL?