Write the fastest query to find out how many rows exist in a table?
No Answer is Posted For this Question
Be the First to Post Answer
Write the fastest query to find out how many rows exist in a table?
Explain the role of indexing in databases?
How to generate OIDS
Explain about xml databases?
What is the system function to get the current user's user id?
What you can do to remove data from the cache and query plans from memory for testing the performance of a query repeatedly?
How to combine two function together?
Who are naive users?
Explain what a database is?
What is the difference between a primary index and a secondary index? What is a duplicate data entry in an index? Can a primary index contain duplicates?
What is the physical representation for a many-to-many relationship?
Pgm A calls Pgm B and pgm B uses cursor, when pgm B is called second time, the program is abending saying the cursor is opened? Why?
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)