SELECT CURRENTSTEP FROM (SELECT ( WFENTRY.NAME || ',' || CURRENTSTEP.STEP_ID ) AS CURRENTSTEP, (CASE WHEN WFENTRY.NAME IN
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in this query I am concatenating tow columns , I use this query as a sub query in my other queries and filter the results with and CURRENTSTEP = ?
here is how I use it
select sys_audit_id from ( SELECT * FROM (SELECT F.FINDING_NUMBER,
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I saw adding this as a subquery with the filter and CURRENTSTEP = ? is slowing my query very much , as this is a derived column i cannot add index then how to improve performance for this subquery ?
I need to get all rows where node <operationStatus> value as SUCCESS. I am running following query but it is returning null value insted of data of columns
SELECT a.MESSAGECONTENTS.extract('/clHeader/msgName/object/msgType/sender/senderInstance/operationStatus/text()').getStringVal() FROM Table_xml_tmp a WHERE a.MESSAGECONTENTS.extract('/clHeader/msgName/object/msgType/sender/senderInstance/operationStatus/text()').getStringVal()= 'SUCCESS'
I have a table where i have description column which free text column, the data in description column is seperated and i want to corvert 1 row data in multiple rows dependeing on the number of words.
eg
id description 78664 Pumps Alarm from CAMS RTU154
In the above example this column has 5 word so i want data in 5 rows like below
78664 Pumps 78664 Alarm 78664 from 78664 CAMS 78664 RTU154
This column data can be varied from 1 to any number of words.
I have a column SIX_NO with numbers and null values in it and I would want to display the column with the highest number first and others, in a descending order. I have used the below code
select * from (select six_no from table_name order by six_no desc ) where rownum <=5;
this is the table i have in which repeated itemids for different dates,for example itemid 205 and 203 comes 2 times because that item was consumed again and again in a different date. like this the table data has more than a 20 thousand records;
In which i need to select the last updated dates itemid from this table, because same item id could be consumed 'n' number of times so i need to select it as per the last date or latest dates itemid from this table for each and every item, so how can i select it?
If there are 100 colums or above in a table and we dont want select a single(any one) column from those 100 columns. is there any command or function to do this in oracle.
I can do it by writting names of all 99 columns but as this method is lenghty, so need some efficient way to do this.
like in SQL server we have a "except" keyword through which we can rule out the columns .
ex: select * except (column_name1,column_name_2) from Table_name.
I have a requirement of getting different column value for every select clause. my selection is so much freequent. For example.. 10 Select statement /second.
But when if I am running more than select in a second its is showing the same record which is last dequeue.and also tried with RANDOM(). how to get different value for every statement which is running in single point of time.
In a select query, I want to substitute the column name from a variable (In turn from an array of column names). Details are given below. I am getting an error as mentioned below.
Insert Into Test1 values(10,'Thomas','Manager','LA'); Insert Into Test1 values(11,'George','Chairman','LA');
declare MTest1Test1%RowType; str1VarChar2(1000):='Name'; MValue1Varchar2(100); begin Select * Into MTest1 from Test1 where ID=10; str1:='Select MTest1.'||str1||' from dual'; execute immediate str1 into mvalue1; dbms_output.put_line('mvalue1 '||mvalue1); end; /
I am getting the error:
ORA-00904: "MTEST1"."NAME": invalid identifier ORA-06512: at line 9
explain slow performance of multicolumn indexes on oracle 11g R2 observed in the following scenario? A multi-column index (b-tree index) not partitioned, not unique, not reversed with 3 columns.
A series of queries are run using all 3 columns. The performance hit comes when the first order column values changes. So, maybe after 10 select queries the value changes. The 2nd and 3rd order columns are changing throughout the series of select calls, but no performance bottleneck it hit then.
I am trying to come up with a sql select statement that provides all rows for employees with 2 or more cities.
with sample_table as ( select 'John' name,'city' ValueType,'Toronto' Value from dual union all select 'John' name,'city' ValueType,'Vancouver' Value from dual union all select 'Susan' name,'city' ValueType,'Toronto' Value from dual union all select 'Susan' name,'city' ValueType,'Seattle' Value from dual union all select 'Susan' name,'age' ValueType,30 Value from dual union all select 'Susan' name,'city' ValueType,'Atlanta' Value from dual union all
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NAME VALUETYPE VALUE ----------- ------------- ------------ John City Toronto John City Vancouver Susan City Toronto Susan City Seattle Susan Age 30 Susan City Atlanta David City Chicago David age 35 David Status married David City Dallas
The above code is just to describe the sample table and the desired result set. Please note that Mary is not on the result set since she has no city assigned to her. Also Julia is not on the result set since she only has one city assigned to her. The others are there because they had at least 2 cities assigned to them.
I need the sql syntax that would return this result set.
I'm trying to select id's in a table that have 2 certain values for another column. Example below explains:
idCoupon Type 123Amount 123Percent 456Amount 789Percent
I would like to write a sql statement that would select all rows where id=123, because id 123 has both coupon types "Amount" and "Percent". So the result set of the sql statement would look like:
I'm writing a VPD function to be used for column masking. The predicate (WHERE-clause) it generates may take many different forms. In particular, it may contain inner-selects; for example,
"exists(select '*' from B where B.VAL = '123' and A.KEY = B.KEY)"
where A is the table that is associated to the VPD function, and B is some other table.
if this is OK for column masking? If not, my VPD function may sometimes work and sometimes fail, in unexpected ways.
The Oracle Database Security Guide (11g Release 1) says
Column-masking conditions generated by the policy function must be simple Boolean expressions, unlike regular Oracle Virtual Private Database predicates".
This seems to indicate that there are cases where a VPD function works for row-level security, but not for column masking.
an example of a 'regular Oracle VPD predicate' that doesn't work for column-masking?
In a select query, I want to substitute the column name from a variable (In turn from an array of column names). Details are given below. I am getting an error as mentioned below. sort it out?
Create table Test1(ID Number(10), Name varchar2(100), Description varchar2(1000), Site varchar2(100));
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I am getting the error:
ORA-00904: "MTEST1"."NAME": invalid identifier
ORA-06512: at line 9
My objective is to get the name 'Thomas' in the variable - MValue1. I don't want to use the statement MValue1:=MTest1.Name because, moving forward, I want to have the column name to be dynamic, taken from an array of column names.
I need to achieve it by giving only one select query to get entire record and fetch the column values one by one, by substituting the column name from an array of column names, instead of writing that many lines of code / querying that may times to the database.
2. Table with the values for columns as given in table 1 ex:
col1, col2, col3, col4, col5, a , aa , 1 , x1 , p b , ab , 2 , x2 , q c , ac , 3 , x3 , r
I have to select values from table2.col1 do some processing and calculate values and store it in a table then do the same thing with col2 and so. This needs to be done for all the columns that appear in table1.For example in table 1 i have only three columns mentioned thus i have to process col1, col2 and col3 from table2. col4 and col5 will not be processed since they do not appear in the first table.
The problem is i have hundred columns in table 2 and the user can add up to hundred columns in table 1 as and when it is required.
I have created a cursor to first select column name from table 1 where variable is not null.For each value in cursor i put it in a local variable.
Second step is to select values from table2 where instead of column name i am using the local variable.But the problem is instead of choosing values from col1 the query returns the value as col1 (the value of local variable)