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Prepare command

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Derby Tools and Utilities Guide
45
Prepare command
Syntax
PREPARE
Identifier
AS
String
Description
Creates a java.sql.PreparedStatement using the value of the String, accessible in
ij
by
the Identifier given to it. If a prepared statement with that name already exists in
ij
, an
error will be returned and the previous prepared statement will remain. Use the
Remove
command to remove the previous statement first. If there are any errors in preparing the
statement, no prepared statement is created.
Any SQL statements allowed in the underlying connection's prepared statement can be
prepared with this command.
If the Identifier specifies a connectionName, the statement is prepared on the specified
connection.
Examples
ij> prepare seeMenu as 'SELECT * FROM menu';
ij> execute seeMenu;
COURSE |ITEM |PRICE
-----------------------------------------------
entree |lamb chop |14
dessert |creme brulee |6
2 rows selected
ij>
ij> connect 'jdbc:derby:firstdb;create=true';
ij> create table firsttable (id int primary key,
name varchar(12));
0 rows inserted/updated/deleted
ij> insert into firsttable values
(10,'TEN'),(20,'TWENTY'),(30,'THIRTY');
3 rows inserted/updated/deleted
ij> select * from firsttable;
ID |NAME
------------------------
10 |TEN
20 |TWENTY
30 |THIRTY
3 rows selected
ij> connect 'jdbc:derby:seconddb;create=true';
ij(CONNECTION1)> create table newtable (newid int primary key,
newname varchar(12));
0 rows inserted/updated/deleted
ij(CONNECTION1)> prepare src@connection0 as 'select * from firsttable';
ij>
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