what is the use of double ampersand (&&) in sql queries?

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What is the maximum size of sqlite database?

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How can I make sql query run faster?

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What is the maximum number of triggers,can apply to a single table?

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Can ddl statements be used in pl/sql?

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

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Create table emp (id number(9), name varchar2(20),salary number(9,2)); The table has 100 records after table created.Now i nee to change id's Datatype is to be Varchar2(15). now Alter table emp modify(id varchar2(15),name varchar2(20), salary number(9,2)); Whether it will work or returns error? post answer with explanation.

13 Answers   Oracle, TCS,

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What are the modes of parameters that can be passed to a procedure ?

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How many functions are there in sql?

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Why do we create stored procedures & functions in pl/sql and how are they different?

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What are the two types of cursors in pl sql?

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How to create an array in pl/sql?

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