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nirvairghuman,<br />
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Can you explain how the comment in <a href="http:#a36559725" rel="ugc">http:#a36559725</a>&nbsp;assisted you in solving your question?
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nirvairghuman,

Can you explain how the comment in http:#a36559725 [http:#a36559725] assisted you in solving your question?

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I am getting the below error through email.but when I am trying to login I am not getting any error.<br />
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Failed to connect to database instance: ORA-12537: TNS:connection closed (DBD ERROR: OCIServerAttach). 
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I am getting the below error through email.but when I am trying to login I am not getting any error.

Failed to connect to database instance: ORA-12537: TNS:connection closed (DBD ERROR: OCIServerAttach). 

Failed to connect to database instance: ORA-12537: TNS:connection closed (DBD ERROR: OCIServerAttach).

Oracle is an object-relational database management system. It supports a large number of languages and application development frameworks. Its primary languages are SQL, PL/SQL and Java, but it also includes support for C and C++. Oracle also has its own enterprise modules and application server software.