I got this 'Message' table.
CREATE TABLE message (
id INT PRIMARY KEY,
user_id INT NOT NULL REFERENCES users (id) ON DELETE CASCADE,
category_id INT NOT NULL REFERENCES category (id) ON DELETE CASCADE,
text VARCHAR2(4000),
media VARCHAR2(500),
creation_date DATE DEFAULT SYSDATE
);
CREATE SEQUENCE message_seq;
CREATE OR REPLACE TRIGGER message_bir
BEFORE INSERT ON message
FOR EACH ROW
BEGIN
SELECT message_seq.NEXTVAL
INTO :new.id
FROM dual;
END;
After i insert something i need the last inserted id and the date.
INSERT INTO message (user_id, category_id, media)
VALUES (1, 1, 'fdsfsd')
RETURNING id INTO :last_insert_id
The above gives me the last inserted id, but like i said i also need the creation_date. I dont want to do a select query after...
Is there a way to get 2 values back after run an insert?
You can write:
RETURNING id, creation_date INTO :last_insert_id, :last_creation_date.
See http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/returninginto_clause.htm
Related
I made a table for database and the table created but the insert vales are not working.
This is the table
Create table patient (
Patient_ID Number(9) primary key,
First_name varchar2(15),
Last_name varchar2(10),
Contact number(10),
City varchar2(20),
Doctor_ID Number(9) references Doctor(Doctor_ID));
This is the insert statement
insert into patient values ('21345', 'John', 'Smith', '111-111-1111', 'NJ');
insert into patient values ('21346', 'Emily', 'Rose', '222-222-2222', 'LA');
insert into patient values ('21347', 'Mark', 'Cruise', '333-333-3333', 'NY');
insert into patient values ('21348', 'Bran', 'Stark', '444-444-4444', 'TX');
insert into patient values ('21349', 'Hailey', 'Wraith', '555-555-5555', 'AZ');
I am getting an error saying not enough values.
You are only inserting 5 values when your table is expecting 6 (ParentID, First Name, Last Name, Contact, City and Doctor ID)
You need to pass in a value for Doctor_ID
You forgot to add the table column names during the insert so it tries to add all the data your passing to each column in the table. This is a better way of entering your data when it doesn't require you to insert into all table columns.
Insert into `patient` (`table1`, `table2`, `table3`, `table4`, `table5`) values ('21345', 'John', 'Smith', '111-111-1111', 'NJ');
To break down your issue more, you have 6 columns in your table, but the data your passing is 5, it will give you this error because 5 is less than 6. If you don't want to receive this error you need to state each column you are entering into as seen above -- BUT that field will need to be a nullable field.
In this case Doctor_ID is missing
Insert into `patient` (`table1`, `table2`, `table3`, `table4`, `table5`, `table6` ) values ('21345', 'John', 'Smith', '111-111-1111', 'NJ', 'DOCTOR_ID_DATA_HERE');
ANSWER:
Insert into `patient` (`Patient_ID`, `First_name`, `Last_name`, `Contact`, `City`, `Doctor_ID`) values ('2125', 'John', 'Doe', '111-111-1111', 'LA', '30114');
DOCTOR 30114 needs to already exist because you are referencing from another table, please take note!
I have a trigger named tr_admin_user_role that automatically insert values into tbl_user_role table when we perform a insert in another table called tbl_admin. There is no error at compile time but whenever I insert a value into tbl_admin table it shows me an error and error is like
This is my tbl_admin table
CREATE TABLE tbl_admin(
admin_id INTEGER,
username VARCHAR2(50) NOT NULL UNIQUE,
passwords VARCHAR2(50) NOT NULL,
email VARCHAR2(100) UNIQUE,
enabled CHAR(1) DEFAULT 1 NOT NULL,
created_at DATE DEFAULT SYSDATE NOT NULL,
CONSTRAINT pk_admin_id PRIMARY KEY(admin_id)
);
tbl_user_role table
CREATE TABLE tbl_user_role(
user_role_id INTEGER,
username VARCHAR2(50) NOT NULL,
user_role VARCHAR2(50) DEFAULT 'ROLE_ADMIN' NOT NULL,
CONSTRAINT pk_user_role_id PRIMARY KEY(user_role_id)
);
Trigger that i have created
CREATE OR REPLACE TRIGGER tr_admin_user_role
AFTER INSERT ON tbl_admin
FOR EACH ROW
DECLARE
new_username TBL_ADMIN.username%TYPE;
BEGIN
SELECT username INTO new_username FROM (
SELECT username FROM tbl_admin ORDER BY username DESC
) WHERE ROWNUM = 1;
INSERT INTO tbl_user_role(username, user_role) VALUES(new_username, 'ROLE_ADMIN');
END;
Insert statement
INSERT INTO tbl_admin(username, passwords) VALUES('nisha', 'nisha');
That's not how you fetch the newly inserted / updated / previous value of a column in a Trigger. You should use the :OLD.column_name and :NEW.column_name to refer the old and new column values.Read the documentation to understand more.
So, your Trigger could be rewritten as
CREATE OR REPLACE TRIGGER tr_admin_user_role AFTER
INSERT ON tbl_admin
FOR EACH ROW
BEGIN
INSERT INTO tbl_user_role (
username,
user_role
) VALUES (
:NEW.username,
'ROLE_ADMIN'
);
END;
/
I assume you are using another trigger to generate
admin_id and user_role_id since they are declared as PRIMARY KEYs
and you are not including them in your inserts.
Db fiddle demo
Here I've used dummy values for those columns.
I have created a Trigger on table Customers so that every time a record is deleted from table customers this same record is inserted in table Customer_Archives with the current date as Deletion_Date.
I am have to insert a new customer into table Customers and then delete it. The record must be inserted correctly into table Customers_Archive.
Here's script I have so far:
CREATE TABLE Customer_Archives
(
customer_id NUMBER NOT NULL,
customer_first_name VARCHAR2(50),
customer_last_name VARCHAR2(50) NOT NULL,
customer_address VARCHAR2(255) NOT NULL,
customer_city VARCHAR2(50) NOT NULL,
customer_state CHAR(2) NOT NULL,
customer_zip VARCHAR2(20) NOT NULL,
customer_phone VARCHAR2(30) NOT NULL,
customer_fax VARCHAR2(30),
deletion_date DATE,
CONSTRAINT customer_archives_pk
PRIMARY KEY (customer_id)
);
CREATE OR REPLACE TRIGGER Customers_before_insert
BEFORE DELETE ON Customers
FOR EACH ROW
DECLARE
ar_row Customers%rowtype;
BEGIN
INSERT INTO Customer_Archives
VALUES(ar_row.Customer_id,
ar_row.Customer_First_Name,
ar_row.Customer_Last_Name,
ar_row.Customer_Address,
ar_row.Customer_City,
ar_row.Customer_State,
ar_row.Customer_Zip,
ar_row.Customer_Phone,
ar_row.Customer_Fax,
sysdate());
dbms_output.put_line('New row is added to Customers_Archive
Table with Customer_ID:' ||ar_row.Customer_id ||'on date:' || sysdate());
END;
/
SELECT trigger_name, status FROM user_triggers;
INSERT INTO CUSTOMERS
(customer_id, customer_first_name, customer_last_name, customer_address,
customer_city, customer_state, customer_zip, customer_phone, customer_fax)
VALUES (27,'Sofia','Chen','8888 Cowden St.','Philadelphia','PA',
'19149',7654321234',NULL);
DELETE FROM CUSTOMERS
WHERE customer_id = 27;
When I try to delete the customer that I just inserted I get an error:
Error starting at line : 47 in command -
DELETE FROM CUSTOMERS
WHERE customer_id = 27
Error report -
ORA-01400: cannot insert NULL into ("TUG81959"."CUSTOMER_ARCHIVES"."CUSTOMER_ID")
ORA-06512: at "TUG81959.CUSTOMERS_BEFORE_INSERT", line 4
ORA-04088: error during execution of trigger 'TUG81959.CUSTOMERS_BEFORE_INSERT'
In your DELETE trigger you should be using the :OLD values when creating your archive record:
CREATE OR REPLACE TRIGGER CUSTOMERS_BEFORE_INSERT
BEFORE DELETE ON CUSTOMERS
FOR EACH ROW
BEGIN
INSERT INTO CUSTOMER_ARCHIVES
(CUSTOMER_ID,
CUSTOMER_FIRST_NAME,
CUSTOMER_LAST_NAME,
CUSTOMER_ADDRESS,
CUSTOMER_CITY,
CUSTOMER_STATE,
CUSTOMER_ZIP,
CUSTOMER_PHONE,
CUSTOMER_FAX,
DELETION_DATE)
VALUES
(:OLD.CUSTOMER_ID,
:OLD.CUSTOMER_FIRST_NAME,
:OLD.CUSTOMER_LAST_NAME,
:OLD.CUSTOMER_ADDRESS,
:OLD.CUSTOMER_CITY,
:OLD.CUSTOMER_STATE,
:OLD.CUSTOMER_ZIP,
:OLD.CUSTOMER_PHONE,
:OLD.CUSTOMER_FAX,
SYSDATE());
DBMS_OUTPUT.PUT_LINE('New row is added to Customers_Archive
Table with Customer_ID:' ||:OLD.Customer_id ||'on date:' || SYSDATE());
END;
In your original trigger you'd declared a row variable named ar_row but hadn't assigned anything to any of the fields - therefore they were all NULL. When a BEFORE trigger is invoked during a DELETE, the :OLD values have the values prior to the deletion, and the :NEW values are all NULL.
Best of luck.
I have theses two tables:
TABLE ASSET_ENTRY_NOTE (
ID NUMBER NOT NULL, --PK
ASSETMDL_ID NUMBER NOT NULL, --FK
DEPT_ID NUMBER NOT NULL, --FK
LOCATION NVARCHAR2(100) NOT NULL,
ASSET_ID NUMBER, --FK TO ASSETS
ACCOUNT_ID NUMBER NOT NULL, --FK
TOTAL_DPRC_DURATION FLOAT(126) NOT NULL,
TOTAL_PROD_HRS FLOAT(126),
AMORTIZATION_PRCNTG FLOAT(126),
ACQUIRE_DATE DATE NOT NULL,
DESCRIPTION NVARCHAR2(200) NOT NULL,
APPRFLAG NUMBER DEFAULT 0 NOT NULL,
WRK_HRS FLOAT(126),
)
TABLE ASSETS (
ID NUMBER NOT NULL, --PK
ASSETMDL_ID NUMBER NOT NULL, --FK
DEPT_ID NUMBER NOT NULL,
LOCATION NVARCHAR2(100) NOT NULL, --FK
ACCOUNT_ID NUMBER NOT NULL,
ACQUIRE_DATE DATE NOT NULL,
TOTAL_DPRC_DURATION FLOAT(126),
BALANCE_CLOSING_DATE DATE,
SELL_VAL FLOAT(126),
RPLCMNT_DISCOUNT FLOAT(126),
DESCRIPTION NVARCHAR2(200) NOT NULL,
)
Note that there's a one to one relationship between the two tables (i.e. ASSET_ENTRY_NOTE.ASSET_ID is Unique.
When the ASSETS_ENTRY_NOTE.APPRFLAG is updated to 1 I have this trigger that:
gets a new primary key sequence for the ASSETS table.
insert data from ASSETS_ENTRY_NOTE to ASSETS.
updates the column ASSETS_ENTRY_NOTE.ASSET_ID to the same value as the primary key value on the sequence.
This is the latest try for my trigger:
CREATE OR REPLACE TRIGGER ENTRYNT_ASSET_TRIG
after UPDATE OF APPRFLAG ON ASSET_ENTRY_NOTE
for each row
when (new.apprflag = 1)
declare
v_asset_id number;
BEGIN
SELECT assets_PK_SEQ.NEXTVAL INTO v_asset_id
FROM DUAL d;
insert into assets (ID,
assets.assetmdl_id,
assets.dept_id,
assets.location,
assets.account_id,
assets.acquire_date,
assets.total_dprc_duration,
assets.description
)
values (v_asset_id,
assetmdl_id,
dept_id,
location,
account_id,
acquire_date,
total_dprc_duration,
description
);
update ASSET_ENTRY_NOTE set asset_id = v_asset_id where ;
END;
The thing is, I know that ASSET_ENTRY_NOTE is a mutating table and the last UPDATE statement is not allowed here, But nothing else is working for me.
What I've already tried:
creating a statement-level trigger to update one value only.
using before instead of after but that's incorrect because I need the values just to insert into the ASSETS.
using a cursor to go through each value changed but I had exact fetch error.
creating a procedure that handles inserting and updating.
Any help would be appreciated.
The design seems quite strange to me, but to answer the question about the trigger:
To change the asset_entry_note row in the trigger, you need a before update trigger. In there you can just assign the value to the asset_id column.
Your insert statement is also wrong. You can table-qualify column names in the column list of an insert statement. And the values clause needs to use the values from the inserted row. You are referencing the target table's columns which is not allowed).
You also don't need a select statement to obtain the sequence value.
Putting all that together, your trigger should look something like this:
CREATE OR REPLACE TRIGGER ENTRYNT_ASSET_TRIG
BEFORE UPDATE OF APPRFLAG ON ASSET_ENTRY_NOTE
for each row
when (new.apprflag = 1)
declare
v_asset_id number;
BEGIN
v_asset_id := assets_PK_SEQ.NEXTVAL;
insert into assets
(ID,
assetmdl_id,
dept_id,
location,
account_id,
acquire_date,
total_dprc_duration,
description)
values
(v_asset_id,
new.assetmdl_id, -- reference the inserted row here!
new.dept_id,
new.location,
new.account_id,
new.acquire_date,
new.total_dprc_duration,
new.description);
new.asset_id := v_asset_id;
END;
/
You have to change the design of the application to have only one table with sign to indicate the membership of a particular entity.
Another way is to create 'after statement' trigger to update all affected rows in ASSET_ENTRY_NOTE with proper values. These rows is to be collected in, for example, package collection in row-level trigger.
I fixed it and it worked:
changed to before.
edited the update statement to an assignment of new so that the last line would become :new.asset_id := v_asset_id ;
I have a table
CREATE TABLE STUDENT
(
ID INTEGER PRIMARY KEY,
FIRSTNAME VARCHAR2(1024 CHAR),
LASTNAME VARCHAR2(1024 CHAR),
MODIFIEDDATE DATE DEFAULT sysdate
)
I am inserting a row of data
insert into STUDENT (ID, FIRSTNAME, LASTNAME, MODIFIEDDATE) values (1,'Scott', 'Tiger', sysdate);
When I have to insert a record of data, I need to write a procedure or function which does the following:
if there is no record for the same id insert the row.
if there is a record for the same id and data matches then do nothing.
if there is a record for the same id but data does not match then update the data.
I am new to oracle. From the java end, It is possible to select the record by id and then update that record, but that would make 2 database calls. just to avoid that I am trying update the table using a procedure. If the same can be done in a single database call please mention.
For a single SQL statement solution, you can try to use the MERGE statement, as described in this answer https://stackoverflow.com/a/237328/176569
e.g.
create or replace procedure insert_or_update_student(
p_id number, p_firstname varchar2, p_lastname varchar2
) as
begin
merge into student st using dual on (id = p_id)
when not matched then insert (id, firstname, lastname)
values (p_id, p_firstname, p_lastname)
when matched then update set
firstname = p_firstname, lastname = p_lastname, modifiedate = SYSDATE
end insert_or_update_student;
instead of procedure try using merge in oracle .
If Values is matched it will update the table and if values is not found it will insert the values
MERGE INTO bonuses b
USING (
SELECT employee_id, salary, dept_no
FROM employee
WHERE dept_no =20) e
ON (b.employee_id = e.employee_id)
WHEN MATCHED THEN
UPDATE SET b.bonus = e.salary * 0.1
DELETE WHERE (e.salary < 40000)
WHEN NOT MATCHED THEN
INSERT (b.employee_id, b.bonus)
VALUES (e.employee_id, e.salary * 0.05)
WHERE (e.salary > 40000)
Try this
To solve the second task - "if there is a record for the same id and data matches then do nothing." - starting with 10g we have additional "where" clause in update and insert sections of merge operator.
To do the task we can add some checks for data changes:
when matched then update
set student.last_name = query.last_name
where student.last_name <> query.last_name
This will update only matched rows, and only for rows where data were changed