Exam 4: Introduction to PlSQL

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The error message "ORA-01422: exact fetch returns more than requested number of rows" indicates that the implicit cursor query tried to retrieve multiple records.

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In SQL*Plus,the command SET SERVEROUTPUT ____________________ SIZE 4000 is used to increase the buffer size to 4000.

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What section of a PL/SQL program is used for exception handling?

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To parse a character string it is best to use the LENGTH and RTRIM functions.

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____________________ statements are lines of text that explain or document a program step or series of steps.

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What predefined error indicates that a primary key constraint was violated?

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PL/SQL is a procedural programming language.Explain what this statement means.Be sure to include at least three features of a procedural programming language.What makes PL/SQL the best language to use when programming applications for the Oracle 10g database?

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Choose the composite variable.

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A(n)____________________ FOR loop can be used to process a cursor without explicitly opening the cursor.

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What are some common causes of syntax errors? How does a programmer detect and resolve syntax errors?

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What is a pointer to the context area?

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What section of an exception handler handles unanticipated errors?

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A string literal is enclosed in "" (double quotes).

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____ are typically written in lower-case letters according to the PL/SQL command capitalization style.

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Any text between the characters /* and */ is considered a comment.

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To use a SQL ____________________ query (INSERT,UPDATE,or DELETE)or transaction control command in a PL/SQL command,you simply put the query or command in the PL/SQL program.

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When a program has a syntax error,it will not execute.

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Choose the scalar variable.

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What command is used to associate an exception variable with an undefined Oracle error code?

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To find the length of a string,use the ____________________ function.

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