What is lexical units in pl sql?

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How many types of primary keys are there?

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What are the sql commands?

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Why schema is used in sql?

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Why do we use joins?

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What pl/sql package consists of?

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Suppose There is a string A.B....C.......D.........E........F In this string dots (.) are not having fixed count in between of string. I want the output to have string with one dot between. I.e. A.B.C.D.E.F

6 Answers   IBM,

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What is query execution plan in sql?

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In a table i have columns A,B,C and i have a composite index on columns A,B if so will the following query uses index or not? SELECT sal,name FROM <table_name> WHERE A=<value> AND B=<value> AND C=<value>;

2 Answers   Mastek,

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What is view explain with example?

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Can you have multiple SPs with the same name on a database?

2 Answers   CGI, Quest,

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which command using query analyzer will give you the version of sql server and operating system? : Sql dba

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