2026-03-12 20:23:15

tpt/aot/cbchammer.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Copyright 2020 Tanel Poder. All rights reserved. More info at https://tanelpoder.com
+# Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
+
+# usage: ./cbchammer <num_loops>
+
+# schema creation:
+# 
+#  CREATE TABLE cbchammer (a INT);
+#  INSERT INTO cbchammer VALUES (1);
+#  INSERT INTO cbchammer VALUES (2);
+#  COMMIT;
+#  EXEC DBMS_STATS.GATHER_TABLE_STATS(user, 'CBCHAMMER')
+
+
+CONN=system/oracle@linux01/linprd
+
+
+SQL_CMD="
+CONNECT $CONN
+ALTER SESSION SET plsql_optimize_level = 0;   
+DECLARE
+    x NUMBER;
+BEGIN
+    FOR I IN 1 .. $1 LOOP
+     SELECT a INTO x FROM cbchammer WHERE ROWNUM = 1;
+    END LOOP;
+END;
+/ 
+"
+
+while true
+do 
+    #printf "$SQL_CMD" 
+    printf "$SQL_CMD" | sqlplus -s /nolog
+    #sleep 0.1
+done 
+