I am using Oracle 12c as database and getting ddl of table or other objects using :-
dbms_metadata.get_ddl('TABLE','TABLE_NAME','SCHEMA_NAME');
Same as for constraints and reference constraint i am using :-
dbms_metadata.get_dependent_ddl('CONSTRAINT','TABLE_NAME','SCHEMA_NAME');
dbms_metadata.get_dependent_ddl('REF_CONSTRAINT','TABLE_NAME','SCHEMA_NAME');
Now my problem is i want to extract partition script from table and i tried following :-
select dbms_metadata.get_dependent_ddl('PARTITIONING','TABLE_NAME','SCHEMA_NAME') from dual;
but its giving the following error :-
ORA-31600: invalid input value PARTITIONING for parameter OBJECT_TYPE in function GET_DEPENDENT_DDL
ORA-06512: at "SYS.DBMS_METADATA", line 6069
ORA-06512: at "SYS.DBMS_METADATA", line 8761
ORA-06512: at line 1
31600. 00000 - "invalid input value %s for parameter %s in function %s"
*Cause: A NULL or invalid value was supplied for the parameter.
*Action: Correct the input value and try the call again.
I have also tried :-
select dbms_metadata.get_ddl('PARTITION','PARTITION_NAME','SECONDARYUSER') from dual;
but its giving same error.
Please suggest how can i get partitioned ddl using get_ddl method in oracle.
Partitioning is a table option, not a separate object. By default, GET_DDL for a table should produce the partitioning information. If it doesn't, it's possible you have a session transformation that's disabling it. These two statements should definitely generate a DDL script that includes all the partitioning options:
begin
dbms_metadata.set_transform_param(dbms_metadata.session_transform,'PARTITIONING',true);
end;
/
select dbms_metadata.get_ddl('TABLE','TABLE_NAME','SCHEMA_NAME') from dual;
If you're looking for a way to automatically generate a script that converts a table from nonpartitioned to partitioned, I'm afraid you're out of luck. Although 12c has the ability to convert tables with ALTER TABLE, the package DBMS_METADATA_DIFF apparently has not yet been updated to understand those commands.
For example, if you create the same table with and without partitions, this script doesn't work:
select dbms_metadata_diff.compare_alter(object_type => 'TABLE', name1 => 'TABLE2', name2 => 'TABLE1') diffs from dual;
DIFFS
--------------------------------------------------------------
-- ORA-39266: Cannot alter unpartitioned table to partitioned.
ALTER TABLE "JHELLER"."TABLE2" RENAME TO "TABLE1"
Luckily, in some cases the ALTER syntax seems easy. In my simple examples, I could change a table to partitioned with a command like this:
alter table unpartitioned_table modify
[partitioning clause]
online;
Try this to filter transformation option :-
BEGIN
DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'SQLTERMINATOR', true);
DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'PRETTY', true);
DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'SEGMENT_ATTRIBUTES', false);
DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'STORAGE', false);
END;
/
SELECT DBMS_METADATA.get_ddl ('TABLE', table_name, owner)
FROM all_tables
WHERE owner = UPPER('REFDATA')
AND table_name = DECODE(UPPER('<TBL_NM>'), 'ALL', table_name, UPPER('<TBL_NM>'));
This should give only the default partition along with table ddl.
Related
I am trying to update a table in Oracle. The table is created using following DDL:
CREATE TABLE TEST (
ID_NUM INTEGER,
NAME INTEGER,
VALUE INTEGER,
ITEMS_NUM INTEGER,
)
And there were some data injected into this table. Now, I need to update the table to change the ID_NUM column as VARCHAR and add formatted UUID as default value.
I have followed the queries given below:
CREATE OR REPLACE FUNCTION RANDOM_UUID RETURN VARCHAR IS
V_UUID VARCHAR(255);
BEGIN
SELECT REGEXP_REPLACE(RAWTOHEX(SYS_GUID()), '([A-F0-9]{8})([A-F0-9]{4})([A-F0-9]{4})([A-F0-9]{4})([A-F0-9]{12})', '\1-\2-\3-\4-\5') INTO V_UUID FROM DUAL;
RETURN V_UUID;
END RANDOM_UUID;
ALTER TABLE TEST
DROP COLUMN ID_NUM;
ALTER TABLE TEST
ADD ID_NUM VARCHAR(255) DEFAULT random_uuid() NOT NULL;
It gives an error as SQL Error [4044] [42000]: ORA-04044: procedure, function, package, or type is not allowed here
I have executed and validated the function using following command and it gives a valid formatted UUID.
SELECT RANDOM_UUID() FROM DUAL;
What could be the issue in the ALTER table statement. Can't we use a function for setting default value in Oracle?
Thanks in advance.
I think you can achieve it using the default clause on the column but without function (just replace the function call with the content of the function in default clause) as following. (Please note that the User functions are not allowed in the default clause)
ALTER TABLE TEST
ADD ID_NUM VARCHAR(255)
DEFAULT REGEXP_REPLACE(RAWTOHEX(SYS_GUID()), '([A-F0-9]{8})([A-F0-9]{4})([A-F0-9]{4})([A-F0-9]{4})([A-F0-9]{12})', '\1-\2-\3-\4-\5')
NOT NULL;
I have prepared the db<>fiddle demo to show you the error with function and success without function.
Cheers!!
You cannot use PL/SQL functions in the default expression. But it can be a SQL function.Here's an extract from the 19c Doc:
Default column values are subject to the following restrictions:
A DEFAULT expression cannot contain references to PL/SQL functions or
to other columns, the pseudocolumns LEVEL, PRIOR, and ROWNUM, or date
constants that are not fully specified.
And here's an example using a sql function:
SQL> create table tc (c1 number default sqrt(2));
Table TC created.
The default value has to be an actual value, not a function.
Thank you for reply guys. I kind of solved my problem.
I used to try to update data with ref cursor in dynamic SQL using "where current of" but I now know that won't work.
Then I tried to use %rowtype to store both 'id' and 'clob' in one variable for future updating but turns out weak ref cursor can't use that type binding either.
After that I tried to use record as return of an ref cursor and that doesn't work on weak cursor either.
On the end, I created another cursor to retrieve 'id' separately along with cursor to retrieve 'clob' on the same time then update table with that id.
I'm now working on a Oracle data cleaning task and have a requirement like below:
There are 38 tables(maybe more in the future) and every table has one or multiple column which type is Clob. I need to find different keyword in those columns and according to a logic return binary label of the column and store it in a new column.
For example, there is a table 'myTable1' which has 2 Clob columns 'clob1' and 'clob2'. I'd like to find keyword 'sky' from those columns and store '0'(if not found) or '1'(if found) in two new columns 'clob1Sky','clob2Sky'.
I know if I could write it on a static way which will provide higher efficiency but I have to modify it for those very similar tasks every time. I want save some time on this so I'm trying to write it in a reusable way and not binding to certain table.
But I met some problem when writing the program. My program is like below:
create or replace PACKAGE body LABELTARGETKEYWORD
as
/**
#param varcher tableName: the name of table I want to work on
#param varchar colName: the name of clob column
#param varchar targetWord: the word I want to find in the column
#param varchar newColName: the name of new column which store label of clob
*/
PROCEDURE mainProc(tableName varchar, colName varchar,targetWord varchar,newColName varchar2)
as
type c_RecordCur is ref cursor;
c_sRecordCur c_recordCur;
/*other variables*/
begin
/*(1) check whether column of newColName exist
(2) if not, alter add table of newColName
(3) open cursor for retrieving clob
(4) loop cursor
(5) update set the value in newColName accroding to func labelword return
(6) close cursor and commit*/
end mainProc;
function labelWord(sRecord VARCHAR2,targetWord varchar2) return boolean...
function ifColExist(tableName varchar2,newColName varchar2) return boolean...
END LABELTARGETKEYWORD;
Most DML and DDL are written in dynamic sql way.
The problem is when I write the (5) part, I notice 'Where current of' clause can not be used in a ref cursor or dynamic sql statement. So I have to change the plan.
I tried to use a record(rowid,label) to store result and alter the table later.(the table only be used by two people in my group, so there won't be problem of lock and data changes). But I find because I'm trying to use dynamic sql so actually I have to define ref cursor with return of certain %rowtype and basically all other variables, %type in dynamic sql statement. Which makes me feel my method has something wrong.
My question are:
If there a way to define %type in dynamic sql? Binding type to variable in dynamic SQL?
Could anybody give me a hint how to write that (5) part in dynamic SQL?
Should not I design my program like that?
Is it not the way how to use dynamic SQL or PLSQL?
I'm very new to PL/SQL. Thank you very much.
According to Tom Kyte's advice, to do it in one statement if it can be done in one statement, I'd try to use a single UPDATE statement first:
CREATE TABLE mytable1 (id NUMBER, clob1 CLOB,
clob2 CLOB, clob1sky NUMBER, clob2sky NUMBER )
LOB(clob1, clob2) STORE AS SECUREFILE (ENABLE STORAGE IN ROW);
INSERT INTO mytable1(id, clob1, clob2)
SELECT object_id, object_name, object_type FROM all_objects
WHERE rownum <= 10000;
CREATE OR REPLACE
PROCEDURE mainProc(tableName VARCHAR2, colName VARCHAR2, targetWord VARCHAR2, newColName VARCHAR2)
IS
stmt VARCHAR2(30000);
BEGIN
stmt := 'UPDATE '||tableName||' SET '||newColName||'=1 '||
'WHERE DBMS_LOB.INSTR('||colName||','''||targetWord||''')>1';
dbms_output.put_line(stmt);
EXECUTE IMMEDIATE stmt;
END mainProc;
/
So, calling it with mainProc('MYTABLE1', 'CLOB1', 'TAB', 'CLOB1SKY'); fires the statement
UPDATE MYTABLE1 SET CLOB1SKY=1 WHERE DBMS_LOB.INSTR(CLOB1,'TAB')>1
which seems to do the trick:
SELECT * FROM mytable1 WHERE clob1sky=1;
id clob1 clob2 clob1sky clob2skiy
33 I_TAB1 INDEX 1
88 NTAB$ TABLE 1
89 I_NTAB1 INDEX 1
90 I_NTAB2 INDEX 1
...
I am not sure with your question-
If this job is suppose to run on daily or hourly basis ,running query through it will be very costly. One thing you can do - put all your clob data in a file and save it in your server(i guess it must be linux). then you can create a shell script and schedule a job to run gerp command and fetch your required value and "if found then update your table".
I think you should approaches problem another way:
1. Find all columns that you need:
CURSOR k_clobs
select table_name, column_name from dba_tab_cols where data_type in ('CLOB','NCLOB');
Or 2 cursor(you can build you query if you have more than 1 CLOB per table:
CURSOR k_clobs_table
select DISTINCT table_name from dba_tab_cols where data_type in ('CLOB','NCLOB');
CURSOR k_clobs_columns(table_namee varchar(255)) is
select column_name from dba_tab_cols where data_type in ('CLOB','NCLOB') and table_name = table_namee;
Now you are 100% that column you are checking is clob, so you don't have to worry about data type ;)
I'm not sure what you want achieve, but i hope it may help you.
Hi I want to capture all the Oracle Errors for my DML operations in the manually created table with columns as ErrorID and Error_Descr.
How to get ORA_ERR_NUMBER$ and ORA_ERR_MESG$ values in the above columns?
This table contains user defined errors as well so I do not want to limit it to the Oracle Errors.
Is there any way of capturing Oracle as well as User Defined Errors in the User Defined Tables?
Thanks in Advance!
As per documentation Link,
Oracle allows you to use a manually created table for LOGGING only if you have included these mandatory columns.
ORA_ERR_NUMBER$
ORA_ERR_MESG$
ORA_ERR_ROWID$
ORA_ERR_OPTYP$
ORA_ERR_TAG$
If you want other columns to capture the information in those two columns, you could make them as virtual columns.
CREATE TABLE my_log_table (
ORA_ERR_NUMBER$ NUMBER
,ORA_ERR_MESG$ VARCHAR2(2000)
,ORA_ERR_ROWID$ ROWID
,ORA_ERR_OPTYP$ VARCHAR2(2)
,ORA_ERR_TAG$ VARCHAR2(2000)
,ErrorID NUMBER AS (COALESCE(ORA_ERR_NUMBER$, ORA_ERR_NUMBER$))
,Error_Descr VARCHAR2(2000) AS (COALESCE(ORA_ERR_MESG$, ORA_ERR_MESG$))
);
using COALESCE is a hack because Oracle doesn't allow you to have one column default to another directly.
Now, you could run your error logging dml normally mentioning the logging table name.
INSERT INTO t_emp
SELECT employee_id * 10000
,first_name
,last_name
,hire_date
,salary
,department_id
FROM hr.employees
WHERE salary > 10000 LOG ERRORS
INTO my_log_table('ERR_SAL_LOAD') REJECT LIMIT 25
0 row(s) inserted.
select ORA_ERR_TAG$,ErrorID,Error_Descr FROM my_log_table ;
ORA_ERR_TAG$ ERRORID ERROR_DESCR
ERR_SAL_LOAD 1438 ORA-01438: value larger than specified precision allowed for this column
ERR_SAL_LOAD 1438 ORA-01438: value larger than specified precision allowed for this column
I create a CakePhp model following the right CakePhp naming conventions and add into the $sequence property the name of the sequence as it was created on the Oracle database.
Inserting one record via sql plus was ok, but inserting data via Cakephp triggers the error:
[code] => 2289
[message] => ORA-02289: the sequence does not exists
[offset] => 7 [sqltext] => SELECT my_sql_table_seq.currval FROM dual
Even after cleaning up the tmp/cache content i see the same error as if cakephp try to guess the sequence name even having the sequence property named in the right way.
Is there a way to see why it happens ?
It's obvious that you don't have a sequence called my_sql_table_seq in your oracle schema,
or perhaps you have this sequence in another schema and you're missing related schema name as prefix let's call myschema : select myschema.my_sql_table_seq.currval from dual;
( provided your schema is granted for this sequence to execute ) :
SQL> conn otherschema/password1
SQL> grant execute on my_sql_table_seq to myschema;
SQL> conn myschema/password2
SQL> select otherschema.my_sql_table_seq.currval from dual;
or just create a sequence :
SQL> conn myschema/password2
SQL> create sequence my_sql_table_seq increment by 1 minvalue 0;
SQL> select my_sql_table_seq.currval from dual;
I have function which returns column names and i am trying to use the column name as part of my select statement, but my results are coming as column name instead of values
FUNCTION returning column name:
get_col_name(input1, input2)
Can И use this query to the results of the column from table -
SELECT GET_COL_NAME(input1,input2) FROM TABLE;
There are a few ways to run dynamic SQL directly inside a SQL statement. These techniques should be avoided since they are usually complicated, slow, and buggy. Before you do this try to find another way to solve the problem.
The below solution uses DBMS_XMLGEN.GETXML to produce XML from a dynamically created SQL statement, and then uses XML table processing to extract the value.
This is the simplest way to run dynamic SQL in SQL, and it only requires built-in packages. The main limitation is that the number and type of columns is still fixed. If you need a function that returns an unknown number of columns you'll need something more powerful, like the open source program Method4. But that level of dynamic code gets even more difficult and should only be used after careful consideration.
Sample schema
--drop table table1;
create table table1(a number, b number);
insert into table1 values(1, 2);
commit;
Function that returns column name
create or replace function get_col_name(input1 number, input2 number) return varchar2 is
begin
if input1 = 0 then
return 'a';
else
return 'b';
end if;
end;
/
Sample query and result
select dynamic_column
from
(
select xmltype(dbms_xmlgen.getxml('
select '||get_col_name(0,0)||' dynamic_column from table1'
)) xml_results
from dual
)
cross join
xmltable
(
'/ROWSET/ROW'
passing xml_results
columns dynamic_column varchar2(4000) path 'DYNAMIC_COLUMN'
);
DYNAMIC_COLUMN
--------------
1
If you change the inputs to the function the new value is 2 from column B. Use this SQL Fiddle to test the code.