How to select all the colomns_names from a table, with their datatypes ..

hi :)
i would like to know, how to select in SQL all the columns names from a table with their datatypes so that i get something like this :
Table 1 : table_name
the column ID has the Datatype NUMBER
the column name has the Datatype Varchar2
Table 2 : table_name
the column check has the Datatype NUMBER
the column air has the Datatype Varchar2
and that has to be for all the tables that i own ! ..
P. S : i m trying to do this with java, so it s would be enough if you just tell me how to select all the tables_names with all their colums_names and with all their datatypes ! ..
thank you :)
i ve heard it can be done with USER_TABLES .. but i have no idea how :( ..
Edited by: user8865125 on 17.05.2011 12:22

Hi,
The data dictionary view USER_TAB_COLUMNS has one row for every column in every table in your schema. The columns TABLE_NAME, COLUMN_NAME and DATA_TYPE have all the information you need.
Another data dictionary view, USER_TABLES, may be useful, too. It has one row pre table.

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