select 10 from dual; y its showing all the rows with 10?

1 Answers  

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Is it important to partition hard disk?

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Where the sql database files are stored?

0 Answers  

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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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<<labele>> declare a=10 b=20, begin some statements declare a=30 c=40 end; what is the A value in nested block?

1 Answers   ITC Infotech,

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Explain what is table in a database?

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How to select 10 records from a table?

0 Answers  

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HOW TO ADD PRIMARY KEY TO TABLE BY PL/SQL PROGRAM

3 Answers  

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What are all ddl commands?

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can i write pl/sql code in a package

2 Answers  

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which types of join is used in sql widely? : Sql dba

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When a dml statement is executed, in which cursor attributes, the outcome of the statement is saved?

0 Answers  

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