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<TITLE>Creating an Oracle Table to Store Java Types (Java Developers Almanac Example)
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<h3>e249. Creating an Oracle Table to Store Java Types</h3>
This example creates an Oracle table called <code>oracle_all_table</code>
to store Java types.
<P> Oracle does not support the <code>boolean</code> Java type directly. A
typical workaround is to use the Oracle <code>CHAR(1)</code> type and convert
the <code>boolean</code> value to and from a string. Typically, <code>false</code> is
converted to <code>F</code> and <code>true</code> is converted to <code>T</code>.
<pre> try {
Statement stmt = <font color="#0066ff"><i>connection</i></font>.createStatement();
// Create a VARRAY type; see <a href="../java.sql/CreateArray.html" class="eglink"><b>e301</b> Creating a VARRAY Type in an Oracle Database</a>
stmt.execute("CREATE TYPE number_varray AS VARRAY(10) OF NUMBER(12, 2)");
// Create an OBJECT type; <a href="../java.sql/CreateObjectOracle.html" class="eglink"><b>e296</b> Creating an OBJECT Type in an Oracle Database</a>
stmt.execute ("CREATE TYPE my_object AS OBJECT(col_string2 VARCHAR(30), col_int2 INTEGER)");
// Note that Oracle database only allows at most one column of LONG type in a table.
// Column Name Oracle Type Java Type
String sql = "CREATE TABLE oracle_all_table("
+ "col_short SMALLINT, " // short
+ "col_int INTEGER, " // int
+ "col_float REAL, " // float; can also be NUMBER
+ "col_double DOUBLE PRECISION, " // double; can also be FLOAT or NUMBER
+ "col_bigdecimal DECIMAL(13,0), " // BigDecimal
+ "col_string VARCHAR2(254), " // String; can also be CHAR(n)
+ "col_characterstream LONG, " // CharacterStream or AsciiStream
+ "col_bytes RAW(2000), " // byte[]; can also be LONG RAW(n)
+ "col_binarystream RAW(2000), " // BinaryStream; can also be LONG RAW(n)
+ "col_timestamp DATE, " // Timestamp
+ "col_clob CLOB, " // Clob
+ "col_blob BLOB, " // Blob; can also be BFILE
+ "col_array number_varray, " // oracle.sql.ARRAY
+ "col_object my_object)"; // oracle.sql.OBJECT
stmt.executeUpdate(sql);
} catch (SQLException e) {
}
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<b>Related Examples</b></font></td>
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e245. <a class="eglink" href="CreateBasicTable.html?l=rel">
Creating a Database Table
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e246. <a class="eglink" href="DropBasicTable.html?l=rel">
Deleting a Database Table
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e247. <a class="eglink" href="GetTables.html?l=rel">
Listing All Table Names in a Database
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e248. <a class="eglink" href="CreateCompleteMySqlTable.html?l=rel">
Creating a MySQL Table to Store Java Types
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e250. <a class="eglink" href="CreateCompleteSqlServerTable.html?l=rel">
Creating a SQLServer Table to Store Java Types
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See also:
<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Batching">
Batching
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Connections">
Connections
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Database%20Meta%20Data">
Database Meta Data
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Deleting%20Data">
Deleting Data
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Drivers">
Drivers
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Importing%20and%20Exporting">
Importing and Exporting
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Inserting%20and%20Updating%20Data">
Inserting and Updating Data
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Oracle%20OBJECTs">
Oracle OBJECTs
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Oracle%20VARRAYs">
Oracle VARRAYs
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Procedures%20and%20Functions">
Procedures and Functions
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Retrieving%20Data">
Retrieving Data
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Scrollable%20Result%20Sets">
Scrollable Result Sets
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<a class="eglink" href="/egs/java.sql/pkg.html?l=rel#Updatable%20Result%20Sets">
Updatable Result Sets
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