If I am coding an application where high performance is expected, I would use multiple stored procedures. For example, a reporting application in a data warehouse environment might not know the exact table name until runtime. The following syntax gives me error. As an alternative to fetching columns, you can enable supplemental logging for those columns. You should manually convert input string to a list of values inside your query. If it is a small application which doesn't care about the performance and we have enough time to formulate the query in string, I will be accepting your method 100%.
Value is the value, you wish to set it to. These parameters are defined as integers. Or I would use a main procedure which is referred in the application and all other procedures will be called from this procedure depends on the search condition. Consider a scenario where you want to remove a table but, before you do that, you want to find out all of the table dependencies. An addapted proof of concept exploit below. For example, in a query with two parameters, the param entries are p1 and p2.
What if we only had to write the statement once and be able to change the year on-the-fly? I was not criticizing your effort. This lets you change the hints based on your current database statistics, without requiring recompilation. Everywhere it tell me to store the result into a temp table and then query the temp table to store the value into a variable. Hopefully that helps answer your question. You told we use them on a search scenario, why don't you use multiple stored procedures than writing dynamic query? You can add flexibility by constructing the block contents at runtime.
This can be done easily such as the following example shows. List of Employees in a specific Department. By the way it will be good looking into the query execution plan for dynamic queries contained procedure and a normal one which does the same job. Because we all are running out of time. Could have turn into days if I havent found your Blog Thank you for sharing the info. John Prabhu wrote:And Debugging- we need to plan some extra time for testing and make sure that none of the part are built with syntax errors. Let's say we want to be able to pass in the column list along with the city.
Conversely, if there is an issue with your database logic, only your stored procedure needs to be modified. Can I run ddl using execute immediate together with other sq code? The parameters are listed in order defined within the parameterDefinition string. Oracle GoldenGate continues processing after reporting the error. One issue is the potential for where malicious code is inserted into the command that is being built. This means that the connected database server must be able to prepare the statement dynamically.
For Informix, the stored procedure should be specified as a three-part name. Stored procedures allow you to keep your database logic separate from your business logic. So once again, you should make sure your code checks for any potential problems before just executing the generated code. I am using a stored procedure to select records using a cursor. But dynamic queries won't allow to generate a static execution plan, and this will be compiled for every request. This prevents a malicious user from injecting text between an opening quotation mark and its corresponding closing quotation mark. See Also: for more information about using hints.
Modes of other parameters are correct by default. Use this argument if executing a query or a stored procedure that will be executed multiple times. I try to use this syntax but I get an error. I can not do it can someone help me. . One of these options must be used see.
And I completely accept the fact that static sql is much faster and safer way of doing things in sql. How do I get the stored procedure to return the result set from the dynamic query? Thanks Zsolt · Stephen Adam 27-Apr-10 3:17 27-Apr-10 3:17 Appologies for shouting there but dont want anyone using the 'like' example in a production system. I assume so but the first line was confusing. This procedure gets record id as input. The following are some example use cases: select col1 from db1:tab1 select col2 from db2:schema2. Therefore, the block of code cannot possibly compile.