I try to insert values into my table, but I want to only insert the non null ones, the null values I need to just ignore no treatment needed. The variable I want to insert is a result of a SQL select, I tried this but it didn't work:
insert into mytable(id)
values (case when (select id from tab2 where login=?) is not null then (select id from tab2 where login=?))
In other words, I want to insert the id's that correspond to this condition and that are not null only.
here is how you can do it :
insert into mytable(id)
select id from tab2
where login=? and id is not null
You can try this one and see if that works for you:
insert into mytable(id)
select ID
from tab2
where id IS NOT NULL
and login = ?
Related
I'm trying to insert hundreds of rows into a table using a query like:
Insert INTO tableX (column1, colum2)
VALUES
((SELECT sysID FROM tableY where ID = var1), 1)
((SELECT sysID FROM tableY where ID = var2), 1)
et cetera
Now let's say var88 doesn't exist, it will return NULL as sysID, however I can't insert a NULL into column1 so I get an error and the whole insert into query will be terminated. Is there a way to cancel the whole termination and just skip the rows where sysID = NULL? I'm sure I can do this by first doing a proper select, filtering out the NULL rows and THEN do the insert into, however I'm wondering if there is an other way to do this.
You can use the following instead, using a INSERT INTO SELECT:
INSERT INTO tableX (column1, colum2)
SELECT sysID, 1
FROM tableY
WHERE ID IN (va1, var2) AND NOT sysID IS NULL
Where/how are you getting the var1 (etc) variables for your values?
You can convert this to:
Insert INTO tableX (column1, colum2)
VALUES
Select SELECT sysID, 1
Where ID IN (var1, var2, etc..)
WHERE sysID is not null
Or build this into a loop somehow (depending on where/how your var1 etc are coming from
I am new to SQL and I an trying to understand the GROUP BY statement.
I have inserted the following data in SQL:
CREATE TABLE table( id integer, type text);
INSERT INTO table VALUES (1,'start');
INSERT INTO table VALUES (2,'start');
INSERT INTO table VALUES (2,'complete');
INSERT INTO table VALUES (3,'complete');
INSERT INTO table VALUES (3,'start');
INSERT INTO table VALUES (4,'start');
I want to select those IDs that do not have a type 'complete'. For this example I should get IDs 1, 4.
I have tried multiple GROUP BY - HAVING combinations. My best approach is:
SELECT id from customers group by type having type!='complete';
but the resulted IDs are 4,3,2.
Could anyone give me a hint about what I am doing wrong?
You are close. The having clause needs an aggregation function and you need to aggregate by id:
select id
from table t
group by id
having sum(case when type = 'complete' then 1 else 0 end) = 0;
Normally, if you have something called an id, you would also have a table with that as primary key. If so, you can also do:
select it.id
from idtable it
where not exists (select 1
from table t
where t.type = 'complete' and it.id = t.id
);
Ok, trying to make this make sense and see if I can do this. I have multiple queries stored in SQL Server 2012 that I can run individually to get actual results. Each of these queries connect to a multitude of tables. What I want to do is take all of these queries and put them into a single query to get counts in one master list.
So for example. I have a query that looks for all records that have no email addresses. The next query looks for all records missing a phone number in a set field. The next query looks for records missing a filled field.
Each of these queries pull back results and I can run them one at a time. I want to set myself up a single query I can run to give me counts on each in a single results list.
I started doing a Union statement and put two of the query codes into it. The results came up like this:
NoEmail NoPhone
NULL 24486
74596 NULL
What I would like this to look like is this:
NoEmail NoPhone
74596 24486
Any ideas on how to do this?
I hope this is enough info and if not, let me know and I'll get you more.
Thanks.
You can do it like this:
Set up (for demonstration purposes only, so you can see the data I'm using):
create table t1 (
id numeric,
email varchar(20)
);
insert into t1 values (1,'test#example.com');
insert into t1 (id) values (2);
insert into t1 (id) values (3);
create table t2 (
id numeric,
phone varchar(20)
);
insert into t2 values (1,'123-456-7890');
insert into t2 (id) values (2);
insert into t2 (id) values (3);
insert into t2 (id) values (4);
insert into t2 (id) values (5);
Query:
select
(select count(id) from t1 where email is null) as NoEmail,
(select count(id) from t2 where phone is null) as NoPhone;
Result:
NoEmail NoPhone
2 4
You can add as many additional queries on to the end of the query as you'd like:
select
(select count(id) from t1 where email is null) as NoEmail,
(select count(id) from t2 where phone is null) as NoPhone,
(select ...) as anotherCol,
(select ...) as yetAnotherCol;
I have to insert data into first and second table directly. But the third table which I received data as array and inserted into 3rd table as same.
In my 3rd table values will be repeated. Ex:
values:
{name=ff,age=45,empid=23,desig=se,offid=1,details=kk,offid=2,details=aa,offid=3,details=bb,offid=4,details=cc}
So using 2nd table userid as same for all the offid, but details and other columns are different
#My issue is i will get single hit but i need to iterate for 3rd table.
with first_insert as (
insert into sample(name,age)
values(?,?)
RETURNING id
),
second_insert as (
insert into sample1(empid,desig)
values((select id from first_insert),?)
RETURNING userid
)
insert into sample2(offid,details)
values((select userid from second_insert),?)
Is this available or possible in PostgreSQL?
Yes, absolutely possible.
You can join rows from CTEs to VALUES expressions to combine them for a new INSERT in a data-modifying CTE. Something like this:
WITH first_insert AS (
INSERT INTO sample(name,age)
VALUES (?,?)
RETURNING id
)
, second_insert AS (
INSERT INTO sample1(empid, desig, colx)
SELECT i1.id, v.desig, v.colx
FROM first_insert i1
, (VALUES(?,?)) AS v(desig, colx)
RETURNING userid
)
INSERT INTO sample2(offid, details, col2, ...)
SELECT i2.userid, v.details, ...
FROM second_insert i2
, (VALUES (?,?, ...)) AS v(details, col2, ...);
I'm trying to write a query that extracts and transforms data from a table and then insert those data into another table. Yes, this is a data warehousing query and I'm doing it in MS Access. So basically I want some query like this:
INSERT INTO Table2(LongIntColumn2, CurrencyColumn2) VALUES
(SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 FROM Table1 GROUP BY LongIntColumn1);
I tried but get a syntax error message.
What would you do if you want to do this?
No "VALUES", no parenthesis:
INSERT INTO Table2(LongIntColumn2, CurrencyColumn2)
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 FROM Table1 GROUP BY LongIntColumn1;
You have two syntax options:
Option 1
CREATE TABLE Table1 (
id int identity(1, 1) not null,
LongIntColumn1 int,
CurrencyColumn money
)
CREATE TABLE Table2 (
id int identity(1, 1) not null,
LongIntColumn2 int,
CurrencyColumn2 money
)
INSERT INTO Table1 VALUES(12, 12.00)
INSERT INTO Table1 VALUES(11, 13.00)
INSERT INTO Table2
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 FROM Table1 GROUP BY LongIntColumn1
Option 2
CREATE TABLE Table1 (
id int identity(1, 1) not null,
LongIntColumn1 int,
CurrencyColumn money
)
INSERT INTO Table1 VALUES(12, 12.00)
INSERT INTO Table1 VALUES(11, 13.00)
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1
INTO Table2
FROM Table1
GROUP BY LongIntColumn1
Bear in mind that Option 2 will create a table with only the columns on the projection (those on the SELECT).
Remove both VALUES and the parenthesis.
INSERT INTO Table2 (LongIntColumn2, CurrencyColumn2)
SELECT LongIntColumn1, Avg(CurrencyColumn) FROM Table1 GROUP BY LongIntColumn1
I believe your problem in this instance is the "values" keyword. You use the "values" keyword when you are inserting only one row of data. For inserting the results of a select, you don't need it.
Also, you really don't need the parentheses around the select statement.
From msdn:
Multiple-record append query:
INSERT INTO target [(field1[, field2[, …]])] [IN externaldatabase]
SELECT [source.]field1[, field2[, …]
FROM tableexpression
Single-record append query:
INSERT INTO target [(field1[, field2[, …]])]
VALUES (value1[, value2[, …])
Remove VALUES from your SQL.
Remove "values" when you're appending a group of rows, and remove the extra parentheses. You can avoid the circular reference by using an alias for avg(CurrencyColumn) (as you did in your example) or by not using an alias at all.
If the column names are the same in both tables, your query would be like this:
INSERT INTO Table2 (LongIntColumn, Junk)
SELECT LongIntColumn, avg(CurrencyColumn) as CurrencyColumn1
FROM Table1
GROUP BY LongIntColumn;
And it would work without an alias:
INSERT INTO Table2 (LongIntColumn, Junk)
SELECT LongIntColumn, avg(CurrencyColumn)
FROM Table1
GROUP BY LongIntColumn;
Well I think the best way would be (will be?) to define 2 recordsets and use them as an intermediate between the 2 tables.
Open both recordsets
Extract the data from the first table (SELECT blablabla)
Update 2nd recordset with data available in the first recordset (either by adding new records or updating existing records
Close both recordsets
This method is particularly interesting if you plan to update tables from different databases (ie each recordset can have its own connection ...)
inserting data form one table to another table in different DATABASE
insert into DocTypeGroup
Select DocGrp_Id,DocGrp_SubId,DocGrp_GroupName,DocGrp_PM,DocGrp_DocType
from Opendatasource( 'SQLOLEDB','Data Source=10.132.20.19;UserID=sa;Password=gchaturthi').dbIPFMCI.dbo.DocTypeGroup
Do you want to insert extraction in an existing table?
If it does not matter then you can try the below query:
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 INTO T1 FROM Table1
GROUP BY LongIntColumn1);
It will create a new table -> T1 with the extracted information