stmtcache0.out

来自「derby database source code.good for you.」· OUT 代码 · 共 51 行

ij> --
-- testing a cache size of 0
--
-- see that it starts out empty; 
select count(*) from new org.apache.derby.diag.StatementCache() as SC;
1          
-----------
0          
ij> CREATE FUNCTION ConsistencyChecker() RETURNS VARCHAR(128)
EXTERNAL NAME 'org.apache.derbyTesting.functionTests.util.T_ConsistencyChecker.runConsistencyChecker'
LANGUAGE JAVA PARAMETER STYLE JAVA;
0 rows inserted/updated/deleted
ij> autocommit off;
ij> autocommit off;
ij> -- set up aliases
run resource 'stmtCacheAliases.subsql';
ij> --
-- this script registers the various consistency checks for
-- statement caching as simple aliases for ease of scripting
--
create view SC_CONTENTS as select CAST (SUBSTR (CAST (SQL_TEXT as char(200)), 1, 30) AS CHAR(30)) AS SQL_TEXT from new org.apache.derby.diag.StatementCache() as SCVD;
0 rows inserted/updated/deleted
ij> commit;
ij> -- see that it starts out empty; 
select count(*) from SC_CONTENTS;
1          
-----------
0          
ij> -- see that it stays empty; 
select count(*) from SC_CONTENTS;
1          
-----------
0          
ij> -- expect everything to be okay
values consistencyChecker();
1                                                                                                                               
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No open scans, etc.
2 dependencies found                                                                                        
ij> commit;
ij> -- clear aliases
run resource 'stmtCacheAliasesRemove.subsql';
ij> --
-- this script de-registers the various consistency checks for
-- statement caching
--
drop view SC_CONTENTS;
0 rows inserted/updated/deleted
ij> commit;
ij>