oracle10g

问题 I have a stored procedure parse_data which takes 3 arguments which are all NUMBER. I have created a program with three arguments and then a job that will run the stored procedure. The code looks like this: BEGIN dbms_scheduler.create_program(program_name => 'PARSE_PROGRAM', program_type => 'STORED_PROCEDURE', program_action => 'parse_data', number_of_arguments => 3, enabled => false, comments => ''); dbms_scheduler.define_program_argument(program_name => 'PARSE_PROGRAM', argument_name =>

问题 How much time should be taken by query in oracle if cost is 77?? 回答1: See the Oracle Performance Tuning Guide: The cost is an estimated value proportional to the expected resource use needed to execute the statement with a particular plan. The optimizer calculates the cost of access paths and join orders based on the estimated computer resources, which includes I/O, CPU, and memory. Serial plans with higher costs take more time to execute than those with smaller costs. When using a parallel

问题 Could you please explain this to me: I have the following in a Package Specification and not the body using Oracle 10g. TYPE t_fraud_ext IS TABLE OF FI_RPT.FI_Fraud_OBJ; FUNCTION fraud_ext_Sql ( schema_name IN VARCHAR2 , select_beginning_business_date IN DATE – Start Date , select_thru_business_date IN DATE – End Date , select_beginning_business_time IN VARCHAR2 – Start Time , select_thru_business_time IN VARCHAR2 – End Time ) RETURN VARCHAR2; FUNCTION fraud_ext ( schema_name IN VARCHAR2 ,

问题 In procedure if we use FOR UPDATE clause, it will lock particular row and allow only one client to update whereas other client can only fetch data in the same row at that time. My question is when will it unlock the row, what should we do to unlock the row while writing procedure? Take this example here I'm using FOR UPDATE clause for client_count, when ll it unlock that particular row in this procedure. create or replace PROCEDURE newprocedur(inMerid IN VARCHAR2,outCount OUT NUMBER) AS

问题 Is it possible in a single SQL statement to do the following: Use a subset of telephone numbers in a prompt, for example 8001231000-8001239999 . Then query my database that has phone numbers in it, and return which phone numbers in the original subset are NOT in my database? My db is Oracle 10g. Basically instead of bringing back which phone numbers ARE between 8001231000-8001239999 , I want to know which phone numbers between 8001231000-8001239999 are NOT in my database. 回答1: Assuming that

问题 How to replace multiple line breaks with one new line charatcer in oracle server using REGEXP_REPLACE. 回答1: I think this is what you are after. Dealing with carriage returns can get tricky depending if you are on Windows or UNIX but you'll get the idea. This was run in Toad, which uses a regular expression which looks for occurrences of two or more newline characters in a row and replaces them with one newline. 来源： https://stackoverflow.com/questions/32518929/replace-multiple-line-breaks-with

问题 I need to get the result of the below query in varchar2 to display in a view. I tried using dbms_lob.substr as below but then it gives me error "ORA-22922: nonexistent LOB value". dbms_lob.substr((select wm_concat(tr_country) from NEXUS_TRAC_TRAVEL_PLAN_DTL where nexus_year = trdata.nexus_year and nexus_seq_no = trdata.nexus_seq_no),4000,1) , The select query is returning result in CLOB. 回答1: WM_CONCAT returns a VARCHAR2 , not a CLOB . So you can remove the call to DBMS_LOB.SUBSTR . 回答2: If

问题 What is the difference between server and client Hotspot. Is there any reason to switch production environment to -server. Please share your practical experience. Is there any performance boost? Related to Oracle UCM 10g 回答1: Yes, there can be a huge performance boost in some cases. When benchmarking my Protocol Buffers implementation, I was comparing it against the Java implementation - and I was really pleased, until I switched on -server... and saw the Java performance double. I don't know

问题 I have this website application I've been working on, VB.NET .NET 3.5, everything works fine. I also need to develop a console application that updates the website's database. I use an Oracle 10g database. I copied the same connection class I use on my main project, when I try to call the connection method I get this error: The ConnectionString property has not been initialized. Or this error if I don't use the class and call the code directly: The 'OraOLEDB.Oracle' provider is not registered

问题 When a table create in schema (MYSCHEMA), I need to create a trigger that generate a ID column (from sequence) before insert in each created table.. How can I realize this? I know, how I can realize generation of ID column through trigger and sequence, something like this: CREATE OR REPLACE TRIGGER TR1 BEFORE INSERT ON TB1 FOR EACH ROW BEGIN SELECT SQ1.nextval INTO :new.primary_key_column FROM dual; END; But I don't know, how I can use AFTER CREATE ON SCHEMA trigger to create trigger after