oracle11g

问题 I added a table in oracle in oracle with fields - smallint int bigint But it internally store them as decimal(22,0) Is there any way to get individual subtype ( e.g. smallint ) instead of decimal. My usecase: I am using sqoop to copy data from oracle to hive. I need to check metadata of columns of oracle table and wrote own oracle to hive data type mapping. But I am always getting decimal(22,0) , so I need to map all these columns to decimal(22,0) in hive table even for smallint. 回答1: The

问题 See the tables : http://dl.dropbox.com/u/10356431/Shared/screen.png Please help me to construct a SQL to find the correctly answered questions in an online test for a particular test_id. I have constructed one. SELECT COUNT(UNIQUE d.question_id) AS CORRECT FROM test_response d, question_response r WHERE d.response_id = r.question_resp_id AND r.correct_response_flag != 'N' AND d.test_id = '10113' But the problem is while it will find the single choice questions accurately, it won't if its a

问题 I want remove specific value from comma separated sting using oracle. Sample Input - col 1,2,3,4,5 Suppose i want to remove 3 from the string. Sample Output - col 1,2,4,5 Please suggest how i can do this using oracle query. Thanks. 回答1: Here is a solution that uses only standard string functions (rather than regular expressions) - which should result in faster execution in most cases; it removes 3 only when it is the first character followed by comma, the last character preceded by comma, or

问题 I had oracle 11g database installed on my machine (OS win8). It was working fine. This week I upgraded my laptop from win 8 to 8.1. Now I am not able see oracle database services in windows services. Consequently I am not able to start oracle and connect to DB. Tried couple of things like >oradim -STARTUP -SID ORCL DIM-00011: The specified service does not exist. O/S-Error: (OS 1060) The specified service does not exist as an installed servic e. Is there any way to start the oracle ? or Do I

问题 I'm trying to dequeue using Oracle 11g queue using standlone java. Here is the code: public class testq { public static void main(String[] args) throws Exception { testq q = new testq(); AQSession aq_sess = createSession(); q.runTest(aq_sess); } public static AQSession createSession() { Connection db_conn; AQSession aq_sess = null; try { DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); /* Load the Oracle8i AQ driver: */ Class.forName("oracle.AQ.AQOracleDriver"); db_conn =

问题 I have a sequence created with nocycle , noorder , cache 100 and increment by 1 . I am using the below SQL to generate sequence: select myseq.nextVal from dual; With this sequence I got values between 206764957 and 206765478 on one day. After few days when I used this process again it gave me values between 206765361 and 206793474 . So in my first run the highest number was 206765478 and in my second run the lowest number was 206765361 . I was expecting all of the numbers to in the second run

问题 Im new to oracle, what im trying is, I have an xml, i try to insert the same in a oracle database table, i have formed a query, when i try to insert it. i get some Error like Error report - ORA-06550: line 35, column 84: PL/SQL: ORA-00933: SQL command not properly ended ORA-06550: line 5, column 2: PL/SQL: SQL Statement ignored 06550. 00000 - "line %s, column %s:\n%s" *Cause: Usually a PL/SQL compilation error. *Action: i couldnt able to figure out what i missed, Suggest me how to change the

问题 Requirement : Generic query/function to check if the value provided in a varchar column in a table is actually a number & the precision does not exceed the allowed precision. Available values: Table_Name, Column_Name, Allowed Precision, Allowed Scale General advise would be to create a function & use to_number() to validate the value however it won't validate the allowed length (precision-scale). My solution: Validate Number using Regexp NOT REGEXP_LIKE(COLUMN_NAME, '^-?[0-9.]+$') Validate

问题 I try to write a function that split the string,but it shows: ORA-00900: invalid SQL statement error .What's wrong?I think that v_str varchar2(500); or v_strs_last varchar2(4000) := p_value; may be wrong. CREATE OR REPLACE TYPE strsplit_type IS TABLE OF VARCHAR2 (4000); create or replace function strsplit(p_value varchar2, p_split varchar2 := ',') return strsplit_type pipelined is v_idx integer; v_str varchar2(500); v_strs_last varchar2(4000) := p_value; begin loop v_idx := instr(v_strs_last,

问题 So I've got a materalized view (I know...) : CREATE MATERIALIZED VIEW vw_my_view_here REFRESH COMPLETE START WITH SYSDATE NEXT SYSDATE + 1/24 AS /*huge-ass select statement here*/ UNION ALL /*huge-ass select statement here*/ UNION ALL /*huge-ass select statement here*/ UNION ALL /*huge-ass select statement here*/ This has been present in our system for some time without causing issues. One of these select queries is broken (somehow - presumibly schema changes in the underlying tables) and has