Inspired by one the answers in this post: https://stackoverflow.com/questions/2514254/how-can-i-create-a-dynamic-where-clause , I've learned that one way to use Dynamic Query and still use Bind variables is to write your query with With clause. I tried to apply th...
How to modify this procedure to let it use bind variables PROCEDURE KILL(user IN VARCHAR2) AS BEGIN FOR REC IN (SELECT sid,serial# serial FROM V$SESSION WHERE username = user) LOOP execute immediate 'alter system kill session '' :1 , :2 '' immediate' using rec.sid, rec.serial; END...
We're trying to fix old code which generates SQL queries by concatenating text; instead we want to use bind variables as much as possible. One particular case has come up that we don't have a good solution for. SELECT * FROM MyTable WHERE ID IN (1, 4, 10, 30, 93) Where t...
二、如何判断和定位系统中未使用绑定变量的语句 在awr的load profile部分,有个Hard parses指标,表示每秒的hard parse。 另外在Instance Efficiency Percentages部分,Soft Parse %这个指标反映的是硬解析占所有解析的比例。 这两个指标一个是绝对值,一个是相对值。每秒hard parse指标应该比较低,而soft parse%应该较...
You can read up elsewhere on substitution variables; they're quite handy in SQL Developer. But I have fits trying to use bind variables in SQL Developer. This is what I do: SETSERVEROUTPUTONdeclarev_testnum number; v_teststring varchar2(1000);beginv_testnum :=2; ...
You can read up elsewhere on substitution variables; they're quite handy in SQL Developer. But I have fits trying to use bind variables in SQL Developer. This is what I do: SET SERVEROUTPUT ON declare v_testnum number; v_teststring varchar2(1000); ...
bind execute close 例如在java中,通过prepareStatement,每个session对该sql prepare一次,而不是每次调用都prepare一次。 2. PLSQL自动cache cursor 在PLSQL中,所有static sql都是被cache的,重复调用时不会进行soft parse。注意动态sql除外。 declareinumber; ...
using a bind variable: var startdate number; begin select 20110501 into :startdate from dual; end; / PL/SQL procedure successfully completed. SQL> print startdate STARTDATE --- 20110501 in a query: select object_name from user_objects where created > to_date (:startdate,'yyyymmdd'); ...
The Oracle JDBC driver supports bind variables of type REFCURSOR. A REFCURSOR is represented by a JDBC ResultSet. Use the getCursor method of the CallableStatement to convert a REFCURSOR value returned by a PL/SQL block into a ResultSet. JDBC lets you call a stored procedure that executes a ...
The Oracle JDBC driver supports bind variables of type REFCURSOR. A REFCURSOR is represented by a JDBC ResultSet. Use the getCursor method of the CallableStatement to convert a REFCURSOR value returned by a PL/SQL block into a ResultSet. JDBC lets you call a stored procedure that executes a ...