Database design with some tables with EAV format

We are designing a database in which most tables follow a straight relational design. Some tables, however, would benefit from an entity-attribute-value structure.
Specifically, we want to be able to add new value categories simply by adding a row in a data dictionary table. At a later point, we want to create cursors where those categories show up as columns.
Can someone point to tools or generic code that does that job?
Thank you very much,
Alex

You dont need to cursors to show the entities as columns. It can be done using set based code. The concept is called cross tabbing or pivoting
See this examples
www.mssqltips.com/sqlservertip/1019/crosstab-queries-using-pivot-in-sql-server/
https://www.simple-talk.com/sql/t-sql-programming/creating-cross-tab-queries-and-pivot-tables-in-sql/
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Assumption: TE is a user in oracle 10g
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input_string VARCHAR2(16) := '';
raw_input RAW(128) := UTL_RAW.CAST_TO_RAW(CONVERT(input_string,'AL32UTF8','US7ASCII'));
key_string VARCHAR2(8) := 'AsDf!2#4';
raw_key RAW(128) := UTL_RAW.CAST_TO_RAW(CONVERT(key_string,'AL32UTF8','US7ASCII'));
encrypted_raw RAW(2048);
encrypted_string VARCHAR2(2048);
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