How it's possible to copy one entry row of a table with same data to another (same ID, same data values) Database -> same table?
Example:
Table Units:
UID Department Name Item
67 HR John Doe Table
If both tables equal no. of columns and in same order you want to insert then just use below simple query-
INSERT INTO mytable SELECT * FROM units WHERE uid=67;
If you want to insert selected column in another table's selected columns and in your order then use below-
INSERT INTO mytable(col1,col2,col3,col4) SELECT uid,department,`name`,item FROM units WHERE uid=67;
If I understand you correctly you want to copy some rows to table of another DB.
Try INSERT SELECT Query:
insert into db1.tbl(id,col1,col2)
select id,col1,col2 from db2.tbl;
Use trigger option in mysql to make new table with same data.
Suppose if you want to copy table1 data to table2 with some condition.
INSERT INTO table2 (ID, NAME) SELECT Col1, Col2 FROM table1 WHERE Col1='<Your_Condition>';
Here table2 have fields like ID and NAME and table1 have fields like Col1 and Col2.
In that case, above query copy table1 data to table2 on these fields where condition matched on table1, if you want to copy whole data of table1 then remove the WHERE condition from Select Query.
Related
I have two tables, Table1 contains a list of records with columns super_id, user_name and job_type
Table2 contains a 3 columns as well super_id, view and time
Using a select query with criteria on table I would like to create one record per super_id in Table2
Meaning if the select query was SELECT super_id FROM Table1 WHERE job_type = “Instructor”
RF34323 through RF34328 would appear would each be inserted once into Table2 where the View column is always View1 and time is the current date.
How can an Select Insert query like this written?
The following is an example of the 2 tables:
Is this what you want?
insert into table2 (super_id, `view`, `time`)
select super_id, 'view1', now()
from table1
where job_type = 'Instructor';
Note that view and time are very BAD choices for column names, because they are keywords in SQL.
If you want to create table2, then use create table table2 as instead of insert.
Also, you can default the time column to the insertion time, if you set up the table properly.
I am trying to copy data from one table to another with an additional value.
from table1 I need to copy two column(field) values such as ERNO and ENAME to table2.
Also need to update or add ECNO(column or field).
Note: I am using MySQL.
Not only one field ECNO, also need to add more field while copying data from one table to another.
ECNO field is int datatype.
Follwing query I have used for that. But it doesn't work
INSERT INTO TABLE2 (ECNO, ERNO, ENAME) values (1, select ERNO, ENAME from TABLE1)
Any Suggestion how to do this in proper way.
Use INSERT INTO...SELECT syntax:
INSERT INTO TABLE2 (ECNO, ERNO, ENAME)
SELECT 1, ERNO, ENAME
FROM TABLE1
Use like this:
INSERT INTO tbl2 (col1, col2.....)
SELECT tbl1.col1,tbl1.col2
FROM tbl
Im trying to use insert and select in one query.Both the tables have same number of columns except for one column in the table where data is to be inserted
table2 is the mirror image of table1 except for a column called comments;
insert into table2 select * from table1 where city='XYZ' and name = 'STY'
since the no of columns arent equal i get the following error:
Column count doesn't match value count at row 1
INSERT INTO table2 (Coln1,Coln2,Coln3,....) SELECT * FROM table1 WHERE `city`='XYZ' AND `name`='STY';
For the extra column in the table2, NULL is set by default.
I want to insert data from a table WorkTableA to another table TableA, without duplicating the data (i.e. do not insert into WorkTableA if the customer name already exists).
Is there a way of doing it through VBA code.
The field name and their properties in both tables are identical.
What you need is an INSERT INTO statement
INSERT INTO WorkTableA
( CustomerName, Col2, Col3...)
SELECT CustomerName, Col2, Col3
FROM TableA LEFT JOIN WaorkTableA ON TableA.CustomerName = WORKTABLEA.CustomerName
WHERE WorkTableA.CustomerName IS NULL
Something like this might work.
The SELECT part of the statement will select only the ones that DO NOT EXIST in WorkTableA
I have a table that contains some duplicate redords. I want to make records unique. I created a new table (say, destination) and I specified a unique column in it. How can copy records from table1 (source) such that, if the record inserted in the destination table, it does not insert it again.
You can use the "select into" construct and select insert only distinct rows, like this:
insert into table_without_dupes (column0, column1) select distinct column0, column1 from table_with_dupes
If you have autoincrement or other columns that makes the rows distinct, you can just leave them out of the insert and select parts of the statement.
Edit:
If you want to detect duplicates by a single column, you can use group by:
insert into table_without_dupes (column0, column1) select column0, column1 from table_with_dupes group by column0
MySQL will allow you to refer non-aggregated columns in select, but remember that the documentation says "The server is free to choose any value from each group", if you want to select one specific row of the groups, you might find this example useful.
Generic approach
insert into destination(col1,col2)
select DISTINCT col1,col2 from source as s where not exists
(select * from destination as d where d.col1=s.col1)
Edited
insert into destination(col1,col2)
SELECT distinct col1,col2 from source
Edited (Assuming col3 is duplicated and you want only one copy of it.)
insert into destination(col1,col2,col3,....,colN)
SELECT col1,col2,col3,...,colN from source as s1 inner join
(
select col1,col2,max(col3) as col3
from source
group by col1,col2
) as s2 on t1.col1=t2.col1 and t1.col2=t2.col2 and t1.col3=t2.col3
insert into <dest_table_name>
select distinct * from <source_table_name>;