What is a pdo connection?

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How many sql databases can you have on one server?

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Can we use views in stored procedure?

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I have a package in which a table was used in a procedure and compiled later i have dropped the table used in the package what would be the status of package specification and body

1 Answers   TCS,

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Is it important to partition hard disk?

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How would you go about increasing the buffer cache hit ratio? 0. Explain the difference between a hot backup and a cold backup and the benefits associated with each 1. You have just had to restore from backup and do not have any control files. How would you go about bringing up this database? 2. How do you switch from an init.ora file to a spfile? 3. Explain the difference between a data block, an extent and a segment. 4. Give two examples of how you might determine the structure of the table DEPT. 5. Where would you look for errors from the database engine? 6. Compare and contrast TRUNCATE and DELETE for a table. 7. Give the reasoning behind using an index. 8. Give the two types of tables involved in producing a star schema and the type of data they hold. 9. What type of index should you use on a fact table? 10. Give two examples of referential integrity constraints. 11. A table is classified as a parent table and you want to drop and re-create it. How would you do this without affecting the children tables? 12. Explain the difference between ARCHIVELOG mode and NOARCHIVELOG mode and the benefits and disadvantages to each. 13. What command would you use to create a backup control file? 14. Give the stages of instance startup to a usable state where normal users may access it. 15. What column differentiates the V$ views to the GV$ views and how? 16. How would you go about generating an EXPLAIN plan?

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What are the types of join in sql?

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What is pl sql package?

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Can we relate two different tables from two different users in ORACLE,PL/SQL?

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what is recursive stored procedure? : Sql dba

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GLOBAL TEMPORARY TABLE over Views in advantages insolving mutating error?

0 Answers   Virtusa,

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What is the difference between a query and a report?

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