SQL & PL/SQL :: How Many Different Types Of Indexes Have In Oracle
Jul 12, 2012How many different types of indexes we have in oracle?
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SQL & PL/SQL :: Various Collection Types Available In Oracle 9i?
Jun 15, 2010What are the various collection types available in Oracle 9i.
Mention the differences between them.
SQL & PL/SQL :: How Many Types Of Index Are There In Oracle
Nov 11, 2011I read about many indexes as B tree index, function based index,Bitmap Index etc.how many types of Index are there in Oracle and what are they? wat are the categories and sub category? when to use what?
View 6 Replies View RelatedSQL & PL/SQL :: Types Of Oracle Index
Sep 26, 2011Types of oracle index in detail. consider this situation, if a select query without any where clause takes much time to get data,then we will create index for that table.
Now again run the same select query. this time, whether the query takes much time again or will it work fast? whether the index is used for a select query execution or not?
How we can confirm that whether the oracle using the index normally?
PL/SQL :: CASE Statement With Oracle Table Types And EXISTS?
Aug 14, 2012I have been trying to use case statements with oracle table type by really not sure how to go about it. I know it might be simple but it been giving me hard time.
Here is my Cursor:
CURSOR c_chk_style IS
SELECT DISTINCT 1
FROM TABLE(CAST(I_message.ExtOfXOrderDesc_TBL(1).ExtOfXOrderSkuDesc_TBL AS "RIB_ExtOfXOrderSkuDesc_TBL")) item_diff,
[code]...
Now i know that the table type "RIB_ExtOfXOrderSkuDesc_TBL" will be always populated but the table type "RIB_ExtOfXOrderPackDesc_TBL" may not be populate and can be null. So i want to run the exists against the "RIB_ExtOfXOrderPackDesc_TBL" aliased pack_diff only if it is populated. If its null i dont want to run the exists clause.
Indexes In Oracle
May 9, 2011this is just a generic question. If a table has multiple Indexes on it say a table of 20 columns where 8 columns have indexes on it (each columns out of the 8 has an index on it and out of which three columns contain unique indexes on it).
If i run a query on this table where only two columns are specified in the where clause are the remaining 6 indexes on the table scanned during query execution.
Text :: Advanced Compression And Oracle Tables / Indexes
Sep 11, 2012I have noticed that Oracle text related objects, particularily the $I tables are some of the largest objects in our database. I have been actively pursuing utilizing Oracle advanced compression in our databases for OLTP table compression and LOB object compression. I have been unable to find any documentation or notes on if it is advisable to implement either table OLTP or LOB compression for Oracle text objects.
View 1 Replies View RelatedConvert Indexes Of Non-partitioned Table To Hash Partitioned Indexes?
Sep 10, 2012RDBMS - 11.1.0.7, I it possible to convert indexes of a non-partitioned table to hash partitioned indexes by retaining table as non-partitioned?
If yes, is this what it is Creating a Hash-Partitioned Global Index - can be created for partitioned and non-partitioned tables?
Text :: Index Memory Parameter For Oracle Text Indexes
Sep 17, 2013I am on Oracle 11.2.0.3 on Linux and have implemented Oracle Text.I created Oracle Text indexes with default setting. However in an oracle white paper I read that the default setting may not be right. Here is the excerpt from the white paper by Roger Ford:URL....(Part of this white paper below....)Index Memory.
As mentioned above, cached $I entries are flushed to disk each time the indexing memory is exhausted. The default index memory at installation is a mere 12MB, which is very low. Users can specify up to 50MB at index creation time, but this is still pretty low. This would be done by a CREATE INDEX statement something like: CREATE INDEX myindex ON mytable(mycol) INDEXTYPE IS ctxsys.context PARAMETERS ('index memory 50M'); Allow index memory settings above 50MB, the CTXSYS user must first increase the value of the MAX_INDEX_MEMORY parameter, like this: begin ctx_ adm. set_ parameter('max_index_memory', '500M'); end; The setting for index memory should never be so high as to cause paging, as this will have a serious effect on indexing speed. On smaller dedicated systems, it is sometimes advantageous to temporarily decrease the amount of memory consumed by the Oracle SGA (for example by decreasing DB_CACHE_SIZE and/or SHARED_POOL_SIZE) during the index creation process.
Once the index has been created, the SGA size can be increased again to improve query performance." (End here from the white paper excerpt)My question is:
1) To apply this procedure (ctx_adm.set_parameter) required me to login as CTXSYS user. Is that right? or can it be avoided and be done from the application schema? This user CTXSYS is locked by default and I had to unlock it. Is that ok to do in production?
2) What is the value that I should use for the max_index_memory should it be 500 mb - my SGA is 2 GB in Dev/ QA and 3GB in production. Also in the index creation what is the value I should set for index memory parameter - I had left that at default but how should I change now? Should it be 50MB as shown in example above?
3) The white paper also refer to rebuilding an index at some interval like once in a month: ALTER INDEX DR$index_name$X REBUILD ONLINE; We are on Oracle 11g and the white paper was written in 2003.
Varying Return Types
Feb 17, 2012I have two Oracle instances, both are 10.2.0.3..Executing the following results in two different results:
select N'Test" "result" from dual;
On one the output is:
resu
----
Test
and on the other the output is
result
----------------
Test
This seems to suggest that one is returning "Test" as a char(16) and the other as a varchar2 or nvarchar2. In both cases, NLS_CHARACTERSET is WE8ISO8859P1 and NLS_NCHAR_CHARACTERSET is AL16UTF16.
Not being an Oracle DBA, I am not sure where to look.
SQL & PL/SQL :: All Types Of Matrix Report With PDF
Jan 23, 2011Send all type of matrix report with examples.
View 1 Replies View RelatedPL/SQL Loop Types - Variables Incrementing Together
Nov 8, 2012set server output on;
DECLARE
num number(1) :=1;
num2 number(1) := 1;
BEGIN
WHILE num < 5 LOOP
[code]...........
the output for this loop is:
1+1=2
2+2=4
3+3=6
4+4=8
this is what I wanted. Both variables are incrementing together. However, when I try to use a FOR loop to do the same thing:
set serveroutput on;
DECLARE
num number(1) :=1;
num2 number(1) := 1;
BEGIN
FOR i in 1..4 LOOP
[code].......
I get the result:
1+1=2
1+2=3
1+3=4
1+4=5
2+5=7
2+6=8
2+7=9
2+8=10
3+9=12
DECLARE
*
ERROR at line 1:
ORA-06502: PL/SQL: numeric or value error: number precision too large
ORA-06512: at line 8
I understand the output means the inner loop is running its course before the outer loop is started and then continuing on to exceed its limit, but I don't understand why this is or how to make it so I get the same results as the WHILE loops.
All Employee Types In Single Query
Jul 7, 2011I have four employee types such as 'C' for consultants, 'S' for staffs, 'W' for workers ,, ('E','S','W') for all types of employees. i have write four queries for showing four types of employees. can it is possible in a single query.
I have written this in oracle forms . I have taken a list item for workers i have taken 'W' , for staffs i have taken 'S' , for consultants i have taken 'C' and for all i have taken 'A'. my column name is emp_type in( :block.list_item ) but it is not taking the value from the list item when the value is emp_type in('C') etc etc..
like this for workers ,staffs . when it is 'A' it will take emp_type in ('E','S','W')
SMON Not Clearing Up Some Transient Types
Dec 5, 2010All nodes in RAC environment are available.But sessions are not load balanced for one/some of them.
Checking alert log the following oracle errors can be found:
alert_<INSTANCE>.log
ORA-21779: duration not active
ORA-06512: at line 1
The root cause of the problem is SMON that is not clearning up some transient types.
I've noticed this effect in Oracle 11g release 1, but there is a chance it happens for early Oracle versions.
SQL & PL/SQL :: Find Maximum Value Within A Group For Corresponding Types
Oct 25, 2010Test data for the problem is as follows.
SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for 64-bit Windows: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
SQL> with t
2 as
3 (
4 select 1 id, 12 compid, 1 rel_type, null enddt from dual union all
5 select 1, 13, 1, to_date('31.12.1993','dd.mm.yyyy') from dual union all
6 select 1, 14, 1, to_date('12.06.1996','dd.mm.yyyy') from dual union all
7 select 1, 15, 1, to_date('23.04.2003','dd.mm.yyyy') from dual union all
[code].......
I want to find the the latest compid for individual types 1 and 2 only within a list of ids. Latest compid is defined as the compid associated with the latest end date (null is treated as the latest end date).
So in the above example for rel_type = 1, compid : 12 is latest, for rel_type : 2, compid : 6 is latest.
Datatype for the tables are :
Id : Number
compid : Number
Rel_Type : Number
enddt : Date
SQL & PL/SQL :: How To Select Data From REF Within REF (object Types)
Mar 3, 2012how to display REFS from within a REF. I've not used my exact code here as its quite a big file so i've made a similar scenario to get me point across. Here is the code first:
1 CREATE OR REPLACE TYPE object1 AS OBJECT (
2 object_id NUMBER(5),
3 object_name varchar2(10),
4 object_added DATE);
5 /
6 CREATE TABLE object1_tab OF object1 (object_id PRIMARY KEY);
7 /
8 INSERT INTO object1_tab
9 VALUES (1,'Daniel',sysdate);
10 /
11 show errors;
12 /
13 CREATE OR REPLACE TYPE object2 AS OBJECT (
14 object_id NUMBER(5),
15 object_job varchar2(10),
16 object1_ref REF object1 );
17 /
18 CREATE TABLE object2_tab OF object2(object_id PRIMARY KEY);
19 /
20 INSERT INTO object2_tab
21 VALUES (1,'Developer',(SELECT REF(p) FROM object1_tab P
22 WHERE VALUE(p).object_id = &object_id));
23 /
24 select DEREF(object1_ref)
25 FROM object2_tab;
26 /
27 CREATE OR REPLACE TYPE object3 AS OBJECT (
28 object_id NUMBER(5),
29 object_location VARCHAR2(20),
30 object2_ref REF object2);
31 /
32 CREATE TABLE object3_tab OF object3 (object_id PRIMARY KEY);
33 /
34 INSERT INTO object3_tab
35 VALUES (1,'New York',(SELECT REF(p) FROM object2_tab P 36 WHERE VALUE(p).object_id = &object_id));
37 /
38 show errors;
39 /
40 select object_id,object_location,DEREF(object2_ref)
41 FROM object3_tab;
42 /
As yot can see in the code each object refernces from the previous. When I view the DEREF in the third table (object3_tab) i get the following output:
OBJECT_ID OBJECT_LOCATION DEREF(OBJECT2_REF)
--------- -------------------- ----------------------------------
1 New York [SANTA.OBJECT2]
Contained within the object2 is the following:
SANTA.OBJECT2(1,'Developer','oracle.sql.REF@c4cb4aa6')
How would i view the ref for object1 within object3? I will also need to be able to verify the data in these REF in the new table they are used in.
SQL & PL/SQL :: Using EXTEND In Nested Table Types?
Mar 4, 2013need to use Extend() in nested tables in Oracle? What could be the problem if I do not use this method in my code?
I have a nested collection type (TABLE OF VARCHAR2(32)) declared in my package. My stored procedure takes the TABLE type as input and inserts that data into a database table.
I see that my code works fine without using EXTEND method.
XE :: Subtypes Created Incorrectly As Types In 11G R2?
Jun 1, 2013I'm trying to determine why subtype creation is not working in 11G R2 XE, while it works in 11G R2 EE.
Environment is XE 11.2.0.2 on Windows 7 X64 (yes, not supported but I don't have anywhere else to try this).
Here is a test case, using the SYSTEM account as that is what the developers use (yes, terrible practice) :
--type
-- this works, creates the type
CREATE OR REPLACE TYPE [schema].prod_type AS OBJECT (
pid INT,
pprice NUMBER,
MEMBER PROCEDURE display(pid IN NUMBER))
NOT INSTANTIABLE NOT FINAL;
[code]....
I've tried adding the schema name after UNDER, e.g. UNDER [schema].prod_type with the same result.
PL/SQL :: How To Eliminate Duplicates From Record Types
Aug 21, 2013How to eliminate duplicates from record types?Below code errors out with "Wrong number of arguments in call to MULTISET...."
error. DeclareTYPE ln_x_tab IS RECORD(x1 number ,x2 VARCHAR2(4000) ,x3 VARCHAR2(4000) ,x4 VARCHAR2(4000) ,x5 VARCHAR2(4000)); TYPE ln_x_type IS TABLE OF ln_x_tab INDEX BY BINARY_INTEGER; ln_x1 ln_x_type; ln_dist_x1 ln_x_type; gc_stmt varchar2(4000); Begin gc_stmt := ' SELECT x1, x2, x3, x4, x5 FROM table WHERE dynamic_conditions; EXECUTE IMMEDIATE gc_stmt BULK COLLECT INTO ln_x1; ln_dist_x1:= ln_x1 MULTISET UNION DISTINCT ln_x1; End;
I need ln_dist_x1 to have distinct records from table.
ORA-06553 / PLS-306 / Wrong Number Of Types Of Arguments
Apr 9, 2012I'm trying to call a custom made PL/SQL function in a SQL query. I want to supply the values of the parameters during the query. I can call the function if I "hard code" the parameter values, but when I try to supply them I get the ORA-06553 error.
This call works:
select pkg_tm_import_util.wb_screen_hr_refresh_func('','','','','','','','','','','','') from dual
However, this does not, but should be the same as the call that works:
select pkg_tm_import_util.wb_screen_hr_refresh_func(
''''','||
''''','||
''''','||
''''','||
''''','||
''''','||
''''','||
[code]....
SQL & PL/SQL :: Wrong Number Or Types Of Arguments In Call
Jul 11, 2011i am getting PLS-00306: wrong number or types of arguments in call to 'SECURITY_AUDIT_DTL_TYPE' error below code.
CREATE OR REPLACE PROCEDURE load_data_audit_trail_dtl
AS
TYPE security_type IS TABLE OF SECUIRTY%ROWTYPE
INDEX BY PLS_INTEGER;
security_type_var security_type;
[code]....
SQL & PL/SQL :: One Database Two Types Of Fonts English And Russian
Mar 1, 2010I am a programmer in Oracle PL / SQL in Oracle 10g I'd like to use the same time on one Database two types of fonts English and Russian (Cyrillic). Is this possible and how? NLS_LANG ?
View 2 Replies View RelatedPL/SQL :: Selecting From A View With Nested Object Types
Oct 17, 2013I am using 11.2 DB. I have created 2 object types. The contact_t has been embedded into the student_t object and I have created a view with the nested object.How do you select the values from the contact_t object type in SQL from the view? i want to see the values of the contact_t object in speerate fields (ie. contact_name, city, state...)
CREATE OR REPLACE TYPE contact_t AS OBJECT ( dcid NUMBER(10), contact_name VARCHAR2(50), city VARCHAR2(50), state VARCHAR2(10), zip VARCHAR2(10), email VARCHAR2(100) )
CREATE OR REPLACE
[Code]....
ORA-06553 / PLS-306 - Wrong Number Or Types Of Arguments In Call
Oct 24, 2011When I try to run: select xa_time_cnv.utc_to_loc(sysdate ,('yyyy/mm/dd hh24:mm:ss') ) Fecha from dual; This message appears:
ORA-06553: PLS-306: wrong number or types of arguments in call to 'UTC_TO_LOC'
the function is:
/* utc_to_loc
** Purpose: utc_to_loc is a function written to convert a utc time, to the local time zone.
*/
FUNCTION utc_to_loc(utc_datetime in DATE) return DATE IS
CURSOR c_get_utc_offset(utc_datetime DATE) IS
SELECT Offset FROM TimeTran WHERE
utc_datetime BETWEEN UTCStart and UTCStop;
[code]...
My database is on GMT -3 and I try to view convert UTC-TO LOCAL.
PLS-00642 - Local Collection Types Not Allowed In SQL Statements
Feb 20, 2011I write plsql code as following:
DECLARE
TYPE id_collection IS TABLE OF NUMBER;
TYPE title_collection IS TABLE OF VARCHAR2(60);
id ID_COLLECTION;
[Code]...
I got following error: PLS-00642: local collection types not allowed in SQL statements.
SQL & PL/SQL :: User Defined Data Types In Cast Functions
Jun 22, 2010I am migrating sybase to oracle database. A Java developer needs money datatypes.I said to them, please change the cast(<value> as number(19,4) in java code side. but they are not accepted because money data type is used most of the places.
select cast(0 as money) from bank_trans; this sql statements present in java code. I need to create user defined type is equivalent to money datatype.
My steps
I have create user defined data types
create or replace type money as object(money as numbeer(19,4)
select cast(0 as money) from dual;
it shows inconsistent datatypes error.
create or replace type money is table of numbeer(19,4);
select cast(0 as money) from dual;
it shows inconsistent datatypes error.
SQL & PL/SQL :: Data Types To Store Large Integer Values?
Aug 15, 2012what could be effective data type to store large integer values like, 50,000; 10,000,000 etc.?
View 3 Replies View RelatedSQL & PL/SQL :: ORA-06553 / PLS-306 - Wrong Number Or Types Of Arguments In Call To (V)
Oct 25, 2012I am getting an error while i was using merge statement.
error msg : [Error] Execution (138: 16): ORA-06553: PLS-306: wrong number or types of arguments in call to 'V'
SQL & PL/SQL :: Column Validation For Types And Storing Data For Subtypes?
Apr 3, 2010I have following structures:
SQL> CREATE TYPE address_typ AS OBJECT (line1 VARCHAR2(20), city VARCHAR2(20), COUNTRY VARCHAR2(20));
2 /
Type created.
SQL> CREATE TYPE phone_typ AS OBJECT (area_cd VARCHAR2(10), phone# VARCHAR2(10));
2 /
Type created.
SQL> CREATE TYPE phone_list_typ AS TABLE OF phone_typ;
[code]...
My questions are:
1. I have created an object table person_obj of parent type. I have not created object tables of salesperson_typ and customer_typ and want to store data related to both in person_obj. What is the difference between storing data in an object table of parent type and object table of subtypes? In which case should I consider storing data of all subtypes in an object table of parent type instead of object tables of individual subtypes?
2. Second question is regarding validating the column values before the creation of object instance. Suppose before creating an instance of salesperson_typ, I want to check if salary is NOT NULL and greater than 0. I guess constructor is the only option to achieve this but how full-proof it is if constructors are used for this purpose? Is there any other alternate way?
Server Administration :: Column Limit Same For All Types Of Table
Aug 10, 2010Question 1: What is the no of column limits in a single table? Is it same for all type of tables.
Question 2: How to estimate the size for a table in advance with "undo generation amount, index size, redo log size"?
Question 3: What is the real time scenario for creating a table on another schema?
Question 4:I read the below line in a document, but I'm not able to understand it
"we can't move types and extent tables to a different schema when the original data still exists in the database"?