81 lines
1.6 KiB
Plaintext
81 lines
1.6 KiB
Plaintext
== Why is this an issue?
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Trying to assign a large character value to a smaller variable or column will raise an error.
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include::../../../shared_content/plsql/data_dictionary.adoc[]
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== How to fix it
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Ensure that the size of the variable or column is large enough to hold the value.
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=== Code examples
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==== Noncompliant code example
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[source,sql,diff-id=1,diff-type=noncompliant]
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----
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CREATE TABLE Persons
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(
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Id NUMBER,
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Name VARCHAR2(4)
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);
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INSERT INTO Persons (Id, Name) VALUES (1, 'Alice'); -- Noncompliant, raises ORA-12899
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CREATE OR REPLACE PROCEDURE sp1
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IS
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foo VARCHAR2(2);
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BEGIN
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SELECT Name INTO foo FROM Persons WHERE Id = 1; -- Noncompliant, may raise ORA-06502
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END;
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----
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==== Compliant solution
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[source,sql,diff-id=1,diff-type=compliant]
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----
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CREATE TABLE Persons
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(
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Id NUMBER,
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Name VARCHAR2(8)
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);
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INSERT INTO Persons (Id, Name) VALUES (1, 'Alice');
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CREATE OR REPLACE PROCEDURE sp1
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IS
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foo VARCHAR2(8);
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BEGIN
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SELECT Name INTO foo FROM Persons WHERE Id = 1;
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END;
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----
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== Resources
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=== Documentation
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* CWE - https://cwe.mitre.org/data/definitions/704[CWE-704 - Incorrect Type Conversion or Cast]
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* Oracle Database - https://docs.oracle.com/en/error-help/db/ora-12899[ORA-12899]
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* Oracle Database - https://docs.oracle.com/en/error-help/db/ora-06502[ORA-06502]
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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include::../message.adoc[]
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include::../parameters.adoc[]
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include::../highlighting.adoc[]
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'''
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== Comments And Links
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(visible only on this page)
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include::../comments-and-links.adoc[]
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endif::env-github,rspecator-view[]
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