How to store results from following query into another table. Considering there is an appropriate table already created.
SELECT labels.label,shortabstracts.ShortAbstract,images.LinkToImage,types.Type
FROM ner.images,ner.labels,ner.shortabstracts,ner.types
WHERE
labels.Resource=images.Resource
AND labels.Resource=shortabstracts.Resource
AND labels.Resource=types.Resource;
If the table doesn't exist (and you e.g. don't want to create it because it may have lots of column names) you can create it on the fly...
Query:
CREATE TABLE another_table SELECT /* your query goes here */
You can use the INSERT INTO TABLE SELECT....syntax:
INSERT INTO new_table_name
SELECT labels.label,shortabstracts.ShortAbstract,images.LinkToImage,types.Type
FROM ner.images,ner.labels,ner.shortabstracts,ner.types
WHERE labels.Resource=images.Resource AND labels.Resource=shortabstracts.Resource
AND labels.Resource=types.Resource;
if your table dosen't exist then
CREATE TABLE new_table SELECT //write your query here
if your table exist then you can just insert query
INSERT INTO new_table SELECT //write your query here
For more check here and here
INSERT INTO another_table SELECT /*your query goes here*/
In SQLite Studio, I noticed that "AS" keyword is needed:
Query:
CREATE TABLE another_table AS SELECT /* your query goes here */
Related
I have a table with many columns in SQL Server and I have move part of data into MySQL. I made a view or function on the table in SQL Server and these two databases must be synced once a day through job. Because the data of this view may change every day.
View return a table with 3 columns: (char, varchar, varchar) that none of them are unique or primary key.
My solution is:
create a job
execute view on SQL Server
return result of view
create temp table with 3 column in MySQL
move result view from SQL Server to temp table
move records from temp table to new table one by one if not exist before
delete temp table
To transfer without using the temp table, I wanted to use below type of query but could not find the correct query. That's why I used the temp table:
insert into new_table
values (array of records) where record if not exist in new table.
And for the solution I mentioned above, I used the following query:
insert into new_table
select *
from temp_table
where not exist new_table.column = temp_table.column
Do you have a better suggestion that new records can be fetch and added to previous records?
It should look more like this:
insert into new_table
select *
from temp_table
where not exists (
select 1
from new_table
where new_table.column = temp_table.column
)
or maybe this:
insert into new_table
select *
from temp_table
where not exists (
select 1
from new_table
where new_table.column = temp_table.column
and new_table.column2 = temp_table.column2
and new_table.column3 = temp_table.column3
)
I have crate a db in MySQL which has a lot of tables. I want the value of one table to be automatically saved on another table too.
For example I write something on: table1.lastname, I want this to be also stored in table2.lastname .
How is this called and how I can do that with PHP My Admin?
CREATE TABLE new_table_name LIKE old_table_name
Create trigger after_insert on new_table
like this
CREATE TRIGGER `AFTER_INSERT` AFTER INSERT ON `new_table_name` FOR EACH ROW BEGIN
insert into new_table_name (column_names) values (column_values) ;
END
For first you must create table for data store.
Then you must create trigger on wanted table for catch event and insert data in early created table.
This will do what you want:
INSERT INTO table2 (lastname)
SELECT lastname
FROM table1
If you want to include all rows from table1. Otherwise you can add a WHERE statement to the end if you want to add only a subset of table1.
I hope this helps.
If the table doesn't exist, you can create one with the same schema like so:
CREATE TABLE table2 LIKE table1;
Then, to copy the data over:
INSERT INTO table2 SELECT * FROM table1
Or If the tables have different structures you can also:
INSERT INTO table2 (`col1`,`col2`) SELECT `col1`,`col2` FROM table1;
EDIT: to constrain this..
INSERT INTO table2 (`col1_`,`col2_`) SELECT `col1`,`col2` FROM
table1 WHERE `foo`=1
I have two tables ,location and locationdata. I want to query data from both the tables using join and to store the result in a new table(locationCreatedNew) which is not already present in the MySQL.Can I do this in MySQL?
SELECT location.id,locationdata.name INTO locationCreatedNew FROM
location RIGHT JOIN locationdata ON
location.id=locationdata.location_location_id;
Your sample code in OP is syntax in SQL Server, the counter part of that in MySQL is something like:
CREATE TABLE locationCreatedNew
SELECT * FROM location RIGHT JOIN locationdata
ON location.id=locationdata.location_location_id;
Referance: CREATE TABLE ... SELECT
For CREATE TABLE ... SELECT, the destination table does not preserve information about whether columns in the selected-from table are generated columns. The SELECT part of the statement cannot assign values to generated columns in the destination table.
Some conversion of data types might occur. For example, the AUTO_INCREMENT attribute is not preserved, and VARCHAR columns can become CHAR columns. Retrained attributes are NULL (or NOT NULL) and, for those columns that have them, CHARACTER SET, COLLATION, COMMENT, and the DEFAULT clause.
When creating a table with CREATE TABLE ... SELECT, make sure to alias any function calls or expressions in the query. If you do not, the CREATE statement might fail or result in undesirable column names.
CREATE TABLE newTbl
SELECT tbl1.clm, COUNT(tbl2.tbl1_id) AS number_of_recs_tbl2
FROM tbl1 LEFT JOIN tbl2 ON tbl1.id = tbl2.tbl1_id
GROUP BY tbl1.id;
NOTE: newTbl is the name of the new table you want to create. You can use SELECT * FROM othertable which is the query that returns the data the table should be created from.
You can also explicitly specify the data type for a column in the created table:
CREATE TABLE foo (a TINYINT NOT NULL) SELECT b+1 AS a FROM bar;
For CREATE TABLE ... SELECT, if IF NOT EXISTS is given and the target table exists, nothing is inserted into the destination table, and the statement is not logged.
To ensure that the binary log can be used to re-create the original tables, MySQL does not permit concurrent inserts during CREATE TABLE ... SELECT.
You cannot use FOR UPDATE as part of the SELECT in a statement such as CREATE TABLE new_table SELECT ... FROM old_table .... If you attempt to do so, the statement fails.
Please check it for more. Hope this help you.
Use Query like below.
create table new_tbl as
select col1, col2, col3 from old_tbl t1, old_tbl t2
where condition;
I have been looking for a way to duplicate a row, and insert it back to the table, but with a different id value (whose type is auto increment).
I could do this by specifying every column manually, but as there are many columns, and as the columns can be added or removed in the future, I want to use some easy query to do this without having to specify every column name.
Try this:
CREATE TEMPORARY TABLE temp_table SELECT * FROM source_table WHERE ...;
ALTER TABLE temp_table DROP COLUMN column_with_auto_increment;
INSERT INTO source_table SELECT * from temp_table; DROP TABLE temp_table;
Try
INSERT INTO new_table (attr1, attr2, attr3) SELECT oldatr1, oldatr2, oldatr3 FROM old_table WHERE <the filter you want>
It also may work if new_table and old_table are the same.
I have to change the values in my table and create an temporary table from that. But not with UPDATE, since I have to keep the original table.
for example a table like Table(id, date), I have to create a temp table by changing the date values. The ones which are NULL must be CURRENT_DATE().
How can I manage that??
Create temporary table with (id,date)
then
INSERT INTO tempoaryTable (id,date)
SELECT id, IFNULL(date,CURRENT_DATE())
FROM yourTable
You can use INSERT-SELECT form to copy all values from original table to temporary, setting corresponding field to CURRENT_DATE().
Syntax might be off as I don't now mysql
insert into temp_table
select id,coalesce(date,current_date) from mytable