COLUMN NAMES IN AN INSERT STATEMENT
Hi,
What are the advantages and disadvantages of giving the column names in an insert statement. My team lead says, that when ever we use insert, even thought we have value for all the columns in the table, it is advantages to add the column names... I want to know what are the pros and cons...
Any help...
By giving column names in the insert statement means your data is arranged in that order. Otherwise, we do not know what order the data (columns) will come (which will come from the table definition). If fur some reason, the table has all the columns with integer/number as data type then, if the columns are not named in the insert statement and data in in the insert values stament can be in any order (there will not be any database error). The data inserted can be wrong.
Similar Messages
-
How to get the table name and bind columns names in an INSERT statement ?
I have an INSERT statement with input parameters (for example
INSERT INTO my_table VALUES (:a, :a, :a)) and I want to know
without parsing the statement which is the name of table to
insert to and the corresponding columns.
This is needed to generate the SELECT FOR UPDATE statement to
refetch a BLOB before actually writing to it. The code does not
know in advance the schema (generic code).
Thanks in advance,
Joseph CanedoOnce you have prepared your statement, you can execute the
statement with the OCI_DESCRIBE_ONLY mode before binding any
columns. Then you can use OCIParamGet to find out about each
column (column index is 1-based). You should get OCI_NO_DATA or
ORA-24334 if there are no more columns in the statement. Note
that the parameter descriptor from OCIParamGet is
allocated/freed internally by OCI; you do not need to manage it
explicitly. The parameter descriptor is passed to OCIAttrGet in
order to obtain for instance the maximum size of data in the
column OCI_ATTR_DATA_SIZE. You can also get the column name in
this way, although I do not remember the #define off the top of
my head. Getting the table name appears to be much more
difficult; I have never had to do that yet. Good luck. -Ralph -
I have been looking at my code for hours now and cant figure out what is wrong. The error has kept popping up even when i thought i had fixed everything. maybe a second set of eyes could help me out here. If you could help me out it would be much appreciated.
USE [ConorsSetKits]
GO
CREATE TABLE Customers (
CustomerID Int NOT NULL IDENTITY(1000,1),
LastName NChar(30) NOT NULL,
FirstName NChar(30) NOT NULL,
Address NChar(50) NOT NULL,
City NChar(30) NOT NULL,
State NChar(2) NOT NULL,
Zip Numeric(5) NOT NULL,
Email NVarChar(50) NOT NULL,
DateOfBirth Numeric (4) NOT NULL,
CONSTRAINT CustomersPK PRIMARY KEY(CustomerID),
CONSTRAINT ValidZip
CHECK ( [Zip] LIKE '[0-9][0-9][0-9][0-9][0-9]' ),
CONSTRAINT ValidState
CHECK( LEN([State]) = 2),
CONSTRAINT DateOfBirth
CHECK ([DateOfBirth] BETWEEN '1920-01-01' AND getdate() - 5844));
CREATE TABLE Sets (
SetID Int NOT NULL IDENTITY(1000,1) Primary Key,
SetName NChar(20) NOT NULL,
SetType NChar (20) NOT NULL,
Price Numeric (20) NOT NULL,
Quantity Numeric (50) NOT NULL,
CONSTRAINT SetTypeCheck
CHECK (SetType IN ('Planes','Tanks','Robots','Cars','Helicopters','Boats','Trains','Motorcycles','Jets')),
CONSTRAINT ValidQuantity
CHECK (Quantity >= 0)
CREATE TABLE Orders (
OrderID Int NOT NULL IDENTITY(1000,1),
CustomerID Int NOT NULL,
OrderDate Date NOT NULL,
CONSTRAINT CAIntPK PRIMARY KEY(OrderID, CustomerID),
SET IDENTITY_INSERT dbo.CUSTOMER OFF
SET IDENTITY_INSERT dbo.Sets OFF
SET IDENTITY_INSERT dbo.Orders OFF
SET IDENTITY_INSERT dbo.CUSTOMER ON
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1000, 'Janes', 'Jeffrey', '123 W. Elm St', 'Renton', 'WA', '98055',
'[email protected]',1985);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1001, 'Smith', 'David', '813 Tumbleweed Lane', 'Loveland', 'CO', '81201',
'[email protected]',1992);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1015, 'Twilight', 'Tiffany', '88 1st Avenue', 'Langley', 'WA', '98260',
'[email protected]',1972);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1033, 'Smathers', 'Fred', '10899 88th Ave', 'Bainbridge Island', 'WA', '98110',
'[email protected]',1980);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1034, 'Frederickson', 'Mary Beth', '25 South Lafayette', 'Denver', 'CO', '80201',
'[email protected]',1970);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1036, 'Warning', 'Selma', '205 Burnaby', 'Vancouver', 'BC', '80201',
'[email protected]',1981);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1037, 'Wu', 'Susan', '105 Locust Ave', 'Atlanta', 'GA', '30322',
'404', '653-3465', '[email protected]',1971);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1040, 'Gray', 'Donald','55 Bodega Ave', 'Bodega Bay', 'CA', '94923',
'[email protected]',1985);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1041, 'Johnson', 'Lynda', '117 C Street', 'Washington', 'DC', '20003',
'[email protected]',1969);
INSERT INTO Customers
(CustomerID, LastName, FirstName, Address, City, State, Zip,
Email, DateOfBirth)
VALUES (
1051, 'Wilkens', 'Chris', '87 Highland Drive', 'Olympia', 'WA', '98508',
'[email protected]',1994);
SET IDENTITY_INSERT dbo.CUSTOMER OFF
SET IDENTITY_INSERT dbo.Sets ON
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1000, 'MysterySet1','Planes',$29.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1001, 'MysterySet2','Planes',$19.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1002, 'MysterySet4','Tanks',$39.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1003, 'MysterySet3','Robots',$19.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1004, 'MysterySet5','Cars',$29.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1005, 'MysterySet6','Boats',$29.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1006, 'MysterySet7','Trains',$39.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1007, 'MysterySet8','Motorcycles',$9.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1008, 'MysterySet9','Helicopters',$29.99,10);
INSERT INTO Sets
(SetID, SetName, SetType, Price, Quanity)
VALUES (
1009, 'MysterySet10','Jets',$29.99,10);
SET IDENTITY_INSERT dbo.Sets OFF
SET IDENTITY_INSERT dbo.Orders ON
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1000, '2012-12-12');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1000, '2013-12-30');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1005, '2013-08-30');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1004, '2013-12-30');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1004, '2013-08-31');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1004, '2014-03-25');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1002, '2012-11-14');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1001, '2012-11-14');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1001, '2013-01-05');
INSERT INTO Orders
(OrderID, OrderDate)
VALUES
(1006, '2012-06-22');
SET IDENTITY_INSERT dbo.Orders OFFPrice Numeric (20) NOT NULL,
I do not think you understand this datatype? Go look at the values you are attempting to insert into this column. For example, "$29.99". After the insert, what value is actually stored in that column?
DateOfBirth Numeric (4) NOT NULL,
No. Just No. Either change the column name to faithfully represent what values you intend to store (and apply the appropriate constraints) or change the datatype and the values that you intend to store to match the column name. And the constraint
that you do have:
CONSTRAINT DateOfBirth
CHECK ([DateOfBirth] BETWEEN '1920-01-01' AND getdate() - 5844));
is both logically suspect and syntactically wrong. First, the upper boundary will be computed as 1999-04-29 15:50:21.670. But, of course, your column is a whole number of no more than 4 digits. The same issue applies to your lower boundary.
A simple select statement will show you those errors
select cast('1920-01-01' as numeric(4)), getdate() - 5844, cast(getdate() - 5844 as numeric(4));
An insert statement fails with the same error. Because, of course, your boundary values must actually be converted to numeric(4) in order to compare them against the value contained in the column. Generally, you can convert from
string to numeric - IF the content of the string actually contains a value that is numeric and can be converted into the specific type needed. Not so in this case. Is this 16 year period (5844 days) significant for some reason? You should
document it here in your DDL with a comment, because it is unlikely to be documented (and kept current) anywhere else.
And lastly, your script has:
SET IDENTITY_INSERT dbo.CUSTOMER OFF
That is not the name of your table, and therefore that statement also fails. The table name you used is plural. -
Setting column names in a sql statement
hello everyone i hope someone can help me.
i want a sql statement that gets the column names from a arraylist for example
String sql = ("INSERT INTO Cust (and i want this part to get what is in the arraylist) values (?, ?, ?)");
is there any way i can do this?
thanks for your time
lofttyhello again
well when i try to compile it i get an error saying [ODBC SQL server driver] COUNT field incorrect or syntax error.
what is the problem here?
and regarding my previous question my arraylist holds three names (firstname, lastname and postcode) now i want to be able to add 10 values to the column name firstname, then i want to add 8 values to the column name lastname and then 9 values to column name postcode.
i hope this is a better understanding if not let me know and i will try and explain again.
thanks for your time
loftty
StringBuffer sb = new StringBuffer("INSERT INTO Cust (");
Iterator it = arr.iterator();
while (it.hasNext())
String col = (String) it.next();
sb.append(col);
if (it.hasNext())
sb.append(',');
sb.append(") values (?, ?, ?)");
String sql = sb.toString();
PreparedStatement prepStmt = con.prepareStatement(sql);
prepStmt.setString(1, "hello");
prepStmt.setString(2, "hi");
prepStmt.setString(3, "bye");
prepStmt.executeUpdate();
prepStmt.close(); -
Using column number inplace of column name in SQL Select statement
Is there a way to run sql select statements with column numbers in
place of column names?
Current SQL
select AddressId,Name,City from AddressIs this possible
select 1,2,5 from AddressThanks in Advanceuser10962462 wrote:
well, ok, it's not possible with SQL, but how about PL/SQL?As mentioned, using DBMS_SQL you can only really use positional notation... and you can also use those positions to get the other information such as what the column is called, what it's datatype is etc.
CREATE OR REPLACE PROCEDURE run_query(p_sql IN VARCHAR2) IS
v_v_val VARCHAR2(4000);
v_n_val NUMBER;
v_d_val DATE;
v_ret NUMBER;
c NUMBER;
d NUMBER;
col_cnt INTEGER;
f BOOLEAN;
rec_tab DBMS_SQL.DESC_TAB;
col_num NUMBER;
v_rowcount NUMBER := 0;
BEGIN
-- create a cursor
c := DBMS_SQL.OPEN_CURSOR;
-- parse the SQL statement into the cursor
DBMS_SQL.PARSE(c, p_sql, DBMS_SQL.NATIVE);
-- execute the cursor
d := DBMS_SQL.EXECUTE(c);
-- Describe the columns returned by the SQL statement
DBMS_SQL.DESCRIBE_COLUMNS(c, col_cnt, rec_tab);
-- Bind local return variables to the various columns based on their types
FOR j in 1..col_cnt
LOOP
CASE rec_tab(j).col_type
WHEN 1 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000); -- Varchar2
WHEN 2 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_n_val); -- Number
WHEN 12 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_d_val); -- Date
ELSE
DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000); -- Any other type return as varchar2
END CASE;
END LOOP;
-- Display what columns are being returned...
DBMS_OUTPUT.PUT_LINE('-- Columns --');
FOR j in 1..col_cnt
LOOP
DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' - '||case rec_tab(j).col_type when 1 then 'VARCHAR2'
when 2 then 'NUMBER'
when 12 then 'DATE'
else 'Other' end);
END LOOP;
DBMS_OUTPUT.PUT_LINE('-------------');
-- This part outputs the DATA
LOOP
-- Fetch a row of data through the cursor
v_ret := DBMS_SQL.FETCH_ROWS(c);
-- Exit when no more rows
EXIT WHEN v_ret = 0;
v_rowcount := v_rowcount + 1;
DBMS_OUTPUT.PUT_LINE('Row: '||v_rowcount);
DBMS_OUTPUT.PUT_LINE('--------------');
-- Fetch the value of each column from the row
FOR j in 1..col_cnt
LOOP
-- Fetch each column into the correct data type based on the description of the column
CASE rec_tab(j).col_type
WHEN 1 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_v_val);
DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||v_v_val);
WHEN 2 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_n_val);
DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||v_n_val);
WHEN 12 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_d_val);
DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||to_char(v_d_val,'DD/MM/YYYY HH24:MI:SS'));
ELSE
DBMS_SQL.COLUMN_VALUE(c,j,v_v_val);
DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||v_v_val);
END CASE;
END LOOP;
DBMS_OUTPUT.PUT_LINE('--------------');
END LOOP;
-- Close the cursor now we have finished with it
DBMS_SQL.CLOSE_CURSOR(c);
END;
SQL> exec run_query('select empno, ename, deptno, sal from emp where deptno = 10');
-- Columns --
EMPNO - NUMBER
ENAME - VARCHAR2
DEPTNO - NUMBER
SAL - NUMBER
Row: 1
EMPNO : 7782
ENAME : CLARK
DEPTNO : 10
SAL : 2450
Row: 2
EMPNO : 7839
ENAME : KING
DEPTNO : 10
SAL : 5000
Row: 3
EMPNO : 7934
ENAME : MILLER
DEPTNO : 10
SAL : 1300
PL/SQL procedure successfully completed.
SQL> exec run_query('select * from emp where deptno = 10');
-- Columns --
EMPNO - NUMBER
ENAME - VARCHAR2
JOB - VARCHAR2
MGR - NUMBER
HIREDATE - DATE
SAL - NUMBER
COMM - NUMBER
DEPTNO - NUMBER
Row: 1
EMPNO : 7782
ENAME : CLARK
JOB : MANAGER
MGR : 7839
HIREDATE : 09/06/1981 00:00:00
SAL : 2450
COMM :
DEPTNO : 10
Row: 2
EMPNO : 7839
ENAME : KING
JOB : PRESIDENT
MGR :
HIREDATE : 17/11/1981 00:00:00
SAL : 5000
COMM :
DEPTNO : 10
Row: 3
EMPNO : 7934
ENAME : MILLER
JOB : CLERK
MGR : 7782
HIREDATE : 23/01/1982 00:00:00
SAL : 1300
COMM :
DEPTNO : 10
PL/SQL procedure successfully completed.
SQL> exec run_query('select * from dept where deptno = 10');
-- Columns --
DEPTNO - NUMBER
DNAME - VARCHAR2
LOC - VARCHAR2
Row: 1
DEPTNO : 10
DNAME : ACCOUNTING
LOC : NEW YORK
PL/SQL procedure successfully completed.
SQL> -
Invalid column name - fixed by inserting a carriage return - Why?
I'm writing some JSP pages and am executing a statement that retrieves values from three tables.
When executing the statement I receive the error
java.sql.SQLException: Invalid column name
I just want to state here that ALL the column names are definitely correct. I attempted to isolate the problem using my SQL*Plus Interface.
When copying and pasting the SQL that was used (I put the SQL statement into the HTML to allow me to do this) into SQL*Plus it also come up with the error. I found that if I broke up the statement it would run. Specifically if I placed a carriage return (by hitting enter) prior to the 'A' of the AND operator and then copied and pasted into SQL*Plus it would work!
I thought the problem was related to bad syntax in the outer join operator. But removal of the outer join operator and making it a EQUI JOIN situation still gave the same results. I tried the use of brackets to 'help' the DB engine figure it out - silly I know, but it didn't work anyway :(
I've tried this out on UNIX in SQL*Plus where the query was on one line and it worked fine. I've tried it on Oracle 8.1.5 SQL*Plus & Oracle 8.1.7 SQL*Plus on Win2000 and WinNT and no go.
It has also been tested on an Oracle 7.3.4 DB and no go either.
Remember I'm only using SQL*Plus to find out why it is not working - I'm actually attempting to execute this via JDBC (classes12.zip Oracle9 version) in my JavaBean. I can't place a carriage return to 'fix' the problem, and I'm assuming that I shouldn't either.
I've pasted the SQL below (both non-working and working versions). I was going to paste the output of DESC on the associated tables should you too would rule out a mispelled column name, but I didn't want to put anyone off with a long post.
If you can provide any advice I would be very appreciative.
Darren James
Show Me Technology
SQL> SELECT UNIT.Asset_Number,Model,PERSON.Novell_User_Name FROM
UNIT, UNIT_USERS, PERSON
2 WHERE UNIT.Hardware_Reference_Number =
UNIT_USERS.Hardware_Reference_Number(+) AND UNIT_USERS
.Novell_User_Name = PERSON.Novell_User_Name (+) ORDER BY Make,
Model, Asset_Number,Serial_Number,
UNIT.Hardware_Reference_Number,Unit_Type,PERSON.Last_Name,PERSON.Fi
rst_Name,PERSON.Novell_User_Name;
3 /
WHERE UNIT.Hardware_Reference_Number =
UNIT_USERS.Hardware_Reference_Number(+) AND UNIT_USERS.Novel
ERROR at line 2:
ORA-00904: invalid column name
REM -- Using the one with an return prior to the AND
SQL> SELECT UNIT.Asset_Number,Model,PERSON.Novell_User_Name FROM
UNIT, UNIT_USERS, PERSON
2 WHERE UNIT.Hardware_Reference_Number =
UNIT_USERS.Hardware_Reference_Number(+)
3 AND UNIT_USERS.Novell_User_Name = PERSON.Novell_User_Name
(+) ORDER BY Make, Model,
4 Asset_Number,Serial_Number,
5
UNIT.Hardware_Reference_Number,Unit_Type,PERSON.Last_Name,PERSON.Fi
rst_Name,PERSON.Novell_User_
Name;
ASSET_NUMBER
MODEL
NOVELL_USE
10023445
desktop raider
tabisho
10023445
desktop raider
pjblee
100349864
VEi8
SQL>Ok. I feel ashamed that the answer was so simple and not the
problem I thought it was. But in the interests of perhaps
preventing someone else doing the same silly thing....
The error was caused by using a wrong name when 'getting' the
values int the return ResultSet object. (eg using getString
("s.Some_Name") when it should have been getString
("s.Another_Name").
Interestingly the error did occur in one of our SQL*Plus
versions. Why we still are not sure, but since this was a silly
error on my part, I'm sure a similarly silly reason will be the
cause there two.
I appreciate those who responded though. It is a great resource.
Darren James
I'm just guessing here, but could it be some sort of a size thing? Could it be that, if you don't break up line 2, somehow
it gets truncated or wrapped at an inappropriate place? To test
this theory, you might try putting the carriage return in front
of the ORDER BY, instead of in front of the AND, and see if it
has the same effect. If you do get it figured out, please
satisfy our curiosity and let us know. -
C# : Get Column name for an Insert Query from The Selected GridView Row.
Hi Guys, I am trying to insert data in an SQL table by executing an Insert Query.
The problem is that I need to get the column name from a cell in the selected gridview Row.
Here's the snippet:
SqlCommand cmd30 = new SqlCommand("insert into mytable ( '"+GridView7.SelectedRow.Cells[0].Text+"' , r_id) values ('"+ GridView7.SelectedRow.Cells[1].Text +"', '"+TextBox1.Text+"')",con30);
cmd30.ExecuteNonQuery();
**r_id is not a Primary Key.
The Error is get is:
Incorrect syntax near 'r_id'.
Any Help will be appreciated.
Thanks,
Shaleen
TheHexLordHi TheShaleen,
Like your title mentioned.GridView control is a web class.This forum is to discuss problems of C# development. Your question is not related to the topic of this forum.
You'll need to post it in the dedicated ASP.Net Forum for more efficient responses, where you can contact ASP.NET experts. Thanks for understanding.
Best regards,
Kristin
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey. -
Run time Column Name in the Select Statement
Hi there,
I face problem while writing sql statment for report in the Oracle reports.
The prom is I want to bound the where clause column name with the value stored in a variable e.g.
Select * from emp
where Column_Name = 'XYZ' ;
where the variable Column_Name have different values at different times, e.g.
At a time the value of Column_Name is Dept then
Select * from emp
where Dept = 'XYZ' ;
At other time value of Column_Name is City then
Select * from emp
where City = 'XYZ' ;
Waiting for the response .
Regards,
HafeezHi,
U can use lexical parameters for the solutions.U must be aware of it, but still i describe how to work it out.
1)In your datamodel in object navigator create a parameter under User parameter node.Name the parameter, for eg. p_clause.
set data type of parameter to character.
2)write a select query eg.
select * from emp &p_clause; --(THIS IS THE PARAMETER WE CREATED ABOVE)
3)Now run your report
Now in your parameter form pass the value for p_clause parameter.
eg: where name='JACK';
or
where city='NEWYORK';
or where deptno=10;
But do it in steps as above mentioned.
Do tell me if it works or not via mail on [email protected]
Enjoy.......
navneet jain
[email protected] -
How to use INSERT with no column name specified?
I want to insert rows into a database table using JDBC's PreparedStatement. I want to specify all values for each row, so that in plain SQL I would not have to specify column names. I wonder if I can do same thing with JDBC in the same manner (it would save a lot of network traffic as far as I can understand)? The problem is:
I need to know the data types of the columns to use correct setXXX method on my PreparedStatement. For example: ps.setString() for CHAR data and ps.setBytes() for binary data. I can use Connection.getMetadata().getColumns(..,..,tableName,'%') to get column types for all columns in my table as a ResultSet. However but I am not sure if I get them in the right order, i.e. in the order in which the columns have been defined for the table in CREATE TABLE.
So it seems I have a tough choice: to get type information in order externally or to specify (and probably transfer via network) column names in each INSERT statement. :-(
Do I have a better choice? Any ideas will be highly appreciated.....if I get them in the right order, ....Only reason for that is if you are using a meta-data type solution. If you are then there is no solution. After all customer name and address are both just text. How could you tell which is first even if you had a way to handle the types?
But if your inserts are fixed then try using varchars (single ticked entries.) This depends on the database/driver. If is supported then you will have to use SimpleDateFormat to format dates/times in the correct format for the database or use a prepared statement with bind variables. -
Inserting values for all records except 1 or 2 column ,without specify column names.,?
Hi,
for example, in student table i am having 1000 columns, column names like(id ,name,class, dept,etc,.).
i want to insert 998 fields to department table from student tables except(id,class).
i don't want to mention all column names in the insert command,
is there any possibilities to filter the column names in insert command like (EXCEPT, NOT IN).
Thanks in advance..duplicate of
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/b31fa034-5b8f-42e4-b4e1-592a632ca6a5/inserting-values-for-all-records-except-1-or-2-column-without-specify-column-names?forum=sqlce
please dont cross post
Please Mark This As Answer if it solved your issue
Please Vote This As Helpful if it helps to solve your issue
Visakh
My Wiki User Page
My MSDN Page
My Personal Blog
My Facebook Page -
Improving SQL Insert statement syntax
It's about insert statement syntax, in insert statement, unlike in update statement column names and corresponding values are separated in two different sets. With this separation debugging/writing of insert statement is going to be time taking activity. To identify what value is getting stored in any column, first column position needs to be identified and after that by counting commas in the values list value is located. If functions are included in insert statement then counting of commas doesn't help to locate the value.
In any non trivial application column count in insert statement is going to be very big number and it is unmanageable.
If column name and value are written next to each other as it is done in cause of UPDATE statement, it is going to drastically reduce the debugging efforts and there by improves the productivity of the developers.
So I request SQL community please consider having a variant of insert statement in similar lines of update statement. This will simplify the life of millions of developers.
Edited by: user9110509 on Feb 6, 2010 10:19 AMHi,
That's a good idea! An optional alternate way of specifying the columns would be handy.
Perhaps the reason it hasn't been done yet is that most people, like those who have responded to this message, do not find the current syntax much of a problem. We can't be sure if your idea "is going to drastically reduce the debugging efforts" until it is available, but my guess is that it isn't.
One thing I do to make sure the two lists match is to indent the values directly below the column names, like this:
INSERT INTO emp (empno, ename, hiredate, job)
VALUES (9876, 'OBAMA', TO_DATE ( '20-JAN-2009'
, 'DD-MON-YYYY), 'PRESIDENT');If the list is very long, or individual values are very complicated, then I might start with a list of the column names
INSERT INTO emp -- Step 1: not ready to run yet
( empno
, ename
, hiredate
, job
VALUESthen use the editor's copy and paste commands to duplicate that list:
INSERT INTO emp -- Step 2: not ready to run yet
( empno
, ename
, hiredate
, job
VALUES
( empno
, ename
, hiredate
, job
;and then fill in the VALUES section, leaving the copied names as comments:
INSERT INTO emp -- Step 3: ready to run
( empno
, ename
, hiredate
, job
VALUES
( 9876 -- empno
, 'OBAMA' -- ename
, TO_DATE ( '20-JAN-2009'
, 'DD-MON-YYYY
) -- hiredate
, 'PRESIDENT' -- job
; -
Need help understanding what i am doing wrong in my insert statement
insert into employees (employeeid, firstname, lastname, title) Values ('1001', 'jack', null, 'shepard', 'salesperson');
insert into employees (employeeid, firstname, lastname, title) Values ('1002', 'jack', null, 'shepard', 'salesperson');
insert into employees (employeeid, firstname, lastname, title) Values ('1003', 'jack', null, 'shepard', 'salesperson');
insert into employees (employeeid, firstname, lastname, title) Values ('1004', 'jack', null, 'shepard', 'salesperson');
insert into employees (employeeid, firstname, lastname, title) Values ('1005', 'jack', null, 'shepard', 'salesperson');
insert into employees (employeeid, firstname, lastname, title) Values ('1006', 'jack', null, 'shepard', 'salesperson');
i am getting this error message
Msg 110, Level 15, State 1, Line 3
There are fewer columns in the INSERT statement than values specified in the VALUES clause. The number of values in the VALUES clause must match the number of columns specified in the INSERT statement.
also
insert into products (Name, price) values ('shirts', 12.99);
insert into products (Name, price) values ('shirts', 14.99);
insert into products (Name, price) values ('shirts', 11.99);
insert into products (Name, price) values ('shirts', 14.99);
insert into products (Name, price) values ('shirts', 13.99);
insert into products (Name, price) values ('shirts', 15.99);
insert into products (Name, price) values ('shirts', 16.99);
Msg 515, Level 16, State 2, Line 2
Cannot insert the value NULL into column 'ProductID', table 'practice.dbo.products'; column does not allow nulls. INSERT fails.
The statement has been terminated.
what am i doing wrong?insert into employees (employeeid, firstname, lastname, title) Values ('1001', 'jack', null, 'shepard', 'salesperson');
i am getting this error message
Msg 110, Level 15, State 1, Line 3
There are fewer columns in the INSERT statement than values specified in the VALUES clause. The number of values in the VALUES clause must match the number of columns specified in the INSERT statement.
also
You have 4 columns in the insert( employeeid,fname,lname and title) however you are passing 5 values...
What does NULL represents? Is it middlename, then you need to add in the column list of insert as well.
insert into products (Name, price) values ('shirts', 12.99);
Msg 515, Level 16, State 2, Line 2
Cannot insert the value NULL into column 'ProductID', table 'practice.dbo.products'; column does not allow nulls. INSERT fails.
The statement has been terminated.
what am i doing wrong?
It looks like your table products has a column productid as not null. As long as you are not passing the product id in your insert statement, it will try to insert productid as null which will break. If productid is a increment values, then you need to use
either identity or sequence(if you version is 2012 and above). -
How to pull only column names from a SELECT query without running it
How to pull only column names from a SELECT statement without executing it? It seems there is getMetaData() in Java to pull the column names while sql is being prepared and before it gets executed. I need to get the columns whether we run the sql or not.
Maybe something like this is what you are looking for or at least will give you some ideas.
public static DataSet MaterializeDataSet(string _connectionString, string _sqlSelect, bool _returnProviderSpecificTypes, bool _includeSchema, bool _fillTable)
DataSet ds = null;
using (OracleConnection _oraconn = new OracleConnection(_connectionString))
try
_oraconn.Open();
using (OracleCommand cmd = new OracleCommand(_sqlSelect, _oraconn))
cmd.CommandType = CommandType.Text;
using (OracleDataAdapter da = new OracleDataAdapter(cmd))
da.ReturnProviderSpecificTypes = _returnProviderSpecificTypes;
//da.MissingSchemaAction = MissingSchemaAction.AddWithKey;
if (_includeSchema == true)
ds = new DataSet("SCHEMASUPPLIED");
da.FillSchema(ds, SchemaType.Source);
if (_fillTable == true)
da.Fill(ds.Tables[0]);
else
ds = new DataSet("SCHEMANOTSUPPLIED");
if (_fillTable == true)
da.Fill(ds);
ds.Tables[0].TableName = "Table";
}//using da
} //using cmd
catch (OracleException _oraEx)
throw (_oraEx); // Actually rethrow
catch (System.Exception _sysEx)
throw (_sysEx); // Actually rethrow
finally
if (_oraconn.State == ConnectionState.Broken || _oraconn.State == ConnectionState.Open)
_oraconn.Close();
}//using oraconn
if (ds != null)
if (ds.Tables != null && ds.Tables[0] != null)
return ds;
else
return null;
else
return null;
}r,
dennis -
Insert statement will not work if select statement has less number of colum
Hi,
One of my thread is already resolved on the following URL : unable to insert rows into the table
DROP TABLE TEMP;
CREATE TABLE TEMP AS SELECT * FROM CASE_101 WHERE 1=2;
DECLARE
S VARCHAR2(200);
STMT VARCHAR2(500);
begin
for C in (select TABLE_NAME INTO S from USER_TABLES where TABLE_NAME like 'CASE%' TABLE_NAME NOT like '%OLD' and Num_ROWS > 0 order by TABLE_NAME) loop
STMT := 'INSERT INTO TEMP SELECT * FROM ';
STMT:=STMT || C.TABLE_NAME;
EXECUTE IMMEDIATE STMT;
dbms_output.put_line(c.table_name);
end loop;
end;
i am facing now some different; almost all the tables have same number of columns except in few of tables have some additional columns. As above i am creating a table "TEMP" who has highest column temp(by doing some manual process). The table who has less columns than "TEMP" table : Insert statement will not work. 'INSERT INTO TEMP SELECT * FROM less_columns_table_name'.
Please let me know , how can i execute proper way.
Thanks.
Best Regards
Arshaduser13360241 wrote:
Hi,
One of my thread is already resolved on the following URL : unable to insert rows into the table
DROP TABLE TEMP;
CREATE TABLE TEMP AS SELECT * FROM CASE_101 WHERE 1=2;
DECLARE
S VARCHAR2(200);
STMT VARCHAR2(500);
begin
for C in (select TABLE_NAME INTO S from USER_TABLES where TABLE_NAME like 'CASE%' TABLE_NAME NOT like '%OLD' and Num_ROWS > 0 order by TABLE_NAME) loop
STMT := 'INSERT INTO TEMP SELECT * FROM ';
STMT:=STMT || C.TABLE_NAME;
EXECUTE IMMEDIATE STMT;
dbms_output.put_line(c.table_name);
end loop;
end;
i am facing now some different; almost all the tables have same number of columns except in few of tables have some additional columns. As above i am creating a table "TEMP" who has highest column temp(by doing some manual process). The table who has less columns than "TEMP" table : Insert statement will not work. 'INSERT INTO TEMP SELECT * FROM less_columns_table_name'.
Please let me know , how can i execute proper way.
Thanks.
Best Regards
Arshadmore often than not "TEMP" tables are NOT required & are highly inefficient in Oracle.
Either only specify explicit column in TEMP to get data,
or provide value for "extra" column in TEMP -
Invalid Column Name message in the subquery
Hi All, I am receiving the invalid column name message in the subquery. Please help me if there is any work around or change in the query:
Sample query:
update table1 set table1.column1 =
(Select column1 from
(Select column1 from table2 where
table1.columnX = table2.columnX
order by table2.columnM desc,table2.ColumnN desc,
where rownum =1)
When i run the above query i am receiving the following error message:
ORA-00904:invalid column name at table1.columnx.
This column is already existing in table1 and looks like this table is not recoginzed inside of the subquery.
I am trying to update table1.column1 using the first value from table2 after ordering by table2.columnM desc, table2.columnN desc. (ColumnM and ColumnN are the Date columns which i need to perform the sorting). I am new to sql/Plsql. Thanks in Advance for help....The problem is that you can not refer to columns from the outer table from inside a second subquery inside your subquery. Only one level of subquery can be used to transport the column name,.
A solution can be to use groups and aggregation functions instead of rownum = 1.
The following might work.
untested
update table1
set table1.column1 =
(Select max(column1) keep (dense_rank first over table2.columnM desc,table2.ColumnN desc)
from table2
where table1.columnX = table2.columnX
) Another way can be to to make a UNCORRELATED subquery first and then filter on that uncorrelated query with the column name from the outer statement.
This time I use a analytic function.
untested
update table1 u
set u.column1 = (select v1.column1
from
(Select t2.column1, t2.columnX, row_number over (partition by t2.column1, t2.columnX order by t2.columnM desc,t2.ColumnN desc) as rn
from table2
) v1
where v1.columnX = u.columnX
and v1.rn = 1
where /* where clause is missing! */
Maybe you are looking for
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