SQL & PL/SQL :: How To Find Out Which Rows Affected By Update Command
Dec 7, 2010
Assume that we have table Test with a column TestId and Status. This table is having 10,000 records. Now, we need to write a stored procedure that does the following:
1) Select top 10 rows whose "Status = NEW'
2) Update the selected top 10 rows with "Status = PROCESSING"
3) Return those top 10 rows.
Assuming there are hundreds of such requests coming to Oracle database, how can we make sure each request NEVER gets a duplicate record at any given point of time and how to fetch the records that have been updated individual request?
We are building a custom form extension with our EBS R12 where against certain parameters we are inserting and updating records in a table through a PL/SQL procedure.This PL/SQL doesn't use a commit exclusively, instead the user must click the Save button after verifying the data (new records are inserted, existing ones are updated and after the insert and update routines, execute_query is fired to fetch the latest data)
Everything works fine, however, when the user clicks on the Save button form status bar says "FRM-40401: No changes to save"
We would like to alter this message with our own custom message stating how many records were inserted and hows many were updated (We have counters counting this information)
Under which particular trigger we should write the code to enhance this requirement?
UPDATE t_tt_hours a SET a.sak_request = ( SELECT b.sak_request FROM t_requests b, co c
[Code]...
The problem I am having is that it is updating all rows even when it is pulling back a null value for b.sak_request. I've tried adding b.sak_request is not null to the select statement like this:
UPDATE t_tt_hours a SET a.sak_request = ( SELECT b.sak_request FROM t_requests b, co c WHERE b.nam_eds_tracking_id = c.id_dir_track_eds
[Code]...
but it doesn't seem to make a difference. The reason I need to do this is that the difference between where it matches with a valid (non-null) value is 396 rows vs. 12,484 rows which is too time consuming to run on my page.
1) how to find a primary key of a table in oracle, for example if I want to drop a index in table , how do I find what is the primary key in a table so that I can issue that command.
P/s: I don't have OEM installed so I must use SQL command
Example of dropping the index ALTER TABLE table_name drop CONSTRAINT constraint_name;
i have a given pl/sql program that first deletes records out of a table and afterwards inserts new rows. now for example 2 rows out of 10 have a foreign constraint and can not be deleted that easily anymore. so i delete the ones i am able to (with the where not exists clause).
now i want to update the records who have a foreign key constraint and the rest with a regular insert. how would i do this the easiest way. i thought i could use insert with a where clause!!
I use sqlplus in oracle (linux). I have a table and the string cell have long string . Like below :
CODEcolumn A Column B
A BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB .....................................BBBBBBBBBBB
So, I need to edit/update the row A and the value in Column B. But the string in Column B is so long and I only need to edit one character. IF I use update command , I need to type very long string and it is easy to wrong edit .
I use sqlplus in oracle (linux).I have a table and the string cell have long string .
Like below :
column A Column B
A BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB .....................................BBBBBBBBBBB
So, I need to edit/update the row A and the value in Column B.But the string in Column B is so long and I only need to edit one character.IF I use update command , I need to type very long string and it is easy to wrong edit .
I am new to SQL*loader and I would like to know what is the maximum number of ROWS that can be loaded in a Conventional bind array while specifying the command line parameter.
I have restored all datafile to new location (that is ASM) earlier it was on file system using set new name command (RMAN). Now when i'm trying to update control file with swicth command it is prompting error. Version is 11g R2.
RMAN> SWITCH DATAFILE ALL;
RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-00558: error encountered while parsing input commands RMAN-01009: syntax error: found "all": expecting one of: "double-quoted-string, integer, single-quoted-string" RMAN-01007: at line 1 column 17 file: standard input
I want to update salary column of emp table in a way that every value of salary column be increased by 1000, is this possible I can do this one statement only??
(Just FYI-
SQL> desc emp; Name Null? Type ----------------------------------------- -------- ----------------------------
EMPNO NOT NULL NUMBER(4) ENAME VARCHAR2(10) JOB VARCHAR2(9) MGR NUMBER(4) HIREDATE DATE SAL NUMBER(7,2) COMM NUMBER(7,2) DEPTNO NUMBER(2)
I have 2 tables with 3 common columns (Col1, col2,Primary). One common column name is primary (oracle key word).Around 2 lakhs rows to be updated and No indexes are used on these tables. I need to write an update query as shown below.
, im having this trouble to update some records, the problem is i have I have this table with some transactions and each row have a cd_cli (client code), dt_ven (date of the transaction) and a product id (cd_prod) the trouble is, i insert a row for each product in this table, then i have like this
110001YURI AGUIRREWALLMA400V44-B469,0019/9/2013210001YURI AGUIRRESU-7N-B78,0019/9/2013310001YURI AGUIRREWALLSF35V22-S78,5719/9/2013410003WILLIANWALLSA470V22-BS449,002/9/2013 but i need to update the CD_TRANS for each row with the same number like all the YURI AGUIRRE recode must have like CD_TRANS 1, and the WILLIANs CD_TRANS must be 2 and the next must be cd_trans 3, but I've tried to update the table for a lot of ways but i don't have success trying to do this, the last thing i had tried was
MERGE INTO TVEN_TEMP a USING (SELECT CD_CLI, DENSE_RANK () OVER (ORDER BY DT_VEN) new_seq_num FROM TVEN_TEMP WHERE CD_TRANS IS NULL) b ON (a.CD_CLI = b.CD_CLI)
I have a large table with a few billion rows. I need to find ITEM_NAME values in ITEM_MASTER table containing " " (spaces) and replace them with other values. This has to be done within the same script. The replacement values could be any characters or numbers, but not spaces.
The whole reason for this table is testing big databases, so it does not matter what it contains. The reason I need to replace them is that this table will be dumped to a space delimited flat file and spaces within values are not acceptable.
I can get it through this query : select PARTY_ID from XXWFS_CUSTOMER_EXT group by PARTY_ID having count (PARTY_ID) > 1;
Now for the records which i got for each duplicate row i want to update the second row with a specific value.. so that duplicate rows does not exist anymore
Ex: I got party id's 12, 14, 16, 18 two times each
Now as 12 is two times.. i want to update the second row of 12 with some x value same is the case for other values like 14,16, etc
This is a surprisingly common one I've found on the web...even on devshed forum
I am updating one table from another (Updating Table A from Table B):
Table A ID, Value -- ----- 1 A 1 A 2 B
Table B ID, Value -- ----- 1 Animal 2 Box
Table A (modified) ID, Value, Name 1 A Animal 1 A Animal 2 B Box
No I need to update a new column in Table A with the value in Table B.Value where the ID's from both tables match. Problem is: When I do this I get multiple rows and hence Oracle won't let me update this column. Now, I keep reading that for these types of updates, there has to be a one-to-one relationship...
Is this true...is there anyway of telling Oracle to update wherever it finds that ID, regardless of how many duplicate ID's there are?
This is quite a frustrating problem and most of the sites that I've looked for solutions try get the query one-to-one...problem is...with my table sets it's impossible to do that - I need to update wherever the id's match (even if it return multiple rows).
I have this requirement in Oracle FORMS ver 6i where I populate some records in a table in a datablock and display them on the screen. A facility needs to be provided to the end users to select the records randomly by just entering the count of the records in a non-d/b text field. The number entered in the count field will decide how many records are to be selected randomly.
I tried using the query -
UPDATE <table a> SET <col 1> = <value 1> WHERE rowid IN (SELECT rowid FROM (SELECT * FROM <table a> ORDER BY DBMS_RANDOM.VALUE) WHERE <col 2> = <value 2>) /
which I found on the link [URL] but while compiling, the Form gives a compilation error for the ORDER by clause - i'm sure there's no syntax error in the way I have written it...
how to update the middle of plenty rows in the middle of the columns
sample_data
id name state REGION LOC 1 v A.p 1 1 2 a 3 g K.A 0 3 4 y 5 i T.N 1 0 6 l M.P 0 1 7 c U.P
This is sample data,and i have this kind of large data and i need to fill the rows which are empty. In three columns state,region,loc with data like 0,web_intimation,1,
Updating multiple ROWS with different values using single statement. Requirement is to update one column in a table with the values in the other table.
Say we have 3 tables, CORPORATION,CORPORATE PROFILE and MEMBER.
Each MEMBER has CORPORATE PROFILE which in turn is associated with CORPORATION. Now I need to update MEMBER table with CORPORATION identifier for members who belong to corporations with identifiers say 'ABC' and 'DEF'.
MEMBER table contains column 'CORPIDENTIFIER '. CORPORATEPROFILE table contains MEMBERID and CORPORATIONID,this will associate a member with the corporation. CORPORATION table contains ID and CORPIDENTIFIER.
Using the below query I am getting error,ORA-01427:single-row subquery returns more than one row
UPDATE MEMBER M SET M.CORPIDENTIFIER= (SELECT A.IDENTIFIER FROM CORPORATION A,CORPORATEPROFILE B WHERE B.CORPORATIONID=A.ID AND B.MEMBERID=M.ID AND (A.IDENTIFIER LIKE 'ABC' OR A.IDENTIFIER LIKE 'DEF'))
Sub query in the above query returns multiple rows and hence it is throwing the error.More than one members are associated with Corporations ABC and DEF. Is there any way possible to update all the rows in single query with out iterating the result set of sub query.
I would like to update the complete flag of all the rows of a table except the most recent two rows of each category.
The table has fields like: category - string, item - string, creation_date - string ('YYYYMMDDHHMI'), complete_flag - boolean, etc.
Each category does not have the same amount of records with the same creation_date so I do not want to filter by creation_date. Is there a way to accomplish this?
