A core statement in SQL that does what it says on the tin: inserts data into a table.

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2
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1answer
675 views

Help with a complicated MySQL Query inserting data using select from 2 tables

I am stuck with a case and unable to get the desired result from my query.. I have to insert into a table some records based on multiple records from 2 different tables.. Tables: Target: ...
5
votes
1answer
3k views

sqlcmd slow against SQL Server 2008 R2

I am trying to import a longish SQL script (3.5 millions of lines, 1,5 GB in size) containing mainly short INSERT INTO statements with data using sqlcmd -E -d <database> -S 127.0.0.1 -i ...
4
votes
5answers
11k views

Mysql: Insert performance INNODB vs MYISAM

I am inserting into a simple small table with 5 attributes and 1000 rows. I observed when the engine is INNODB, each insert is taking 0.03 - 0.05 seconds. I changed the engine to MYISAM, then the ...
7
votes
2answers
8k views

How to use Unique key via combinations of table fields?

Take a look at the following sqlfiddle: http://sqlfiddle.com/#!2/dacb5/1 CREATE TABLE contacts ( id int auto_increment primary key, name varchar(20), network_id int, ...
1
vote
4answers
506 views

cross self join to get more rows - better solution?

I have a table employees: +----------------+------------------+ | Field | Type | +----------------+------------------+ | id | int(10) unsigned | | persons_id | ...
2
votes
1answer
145 views

After dropping the clustered index, it is still attempting to do a clustered insert [closed]

I am trying to convert data from one database system to another. One of the tables I need to transfer and format contains over 10 million rows. I am running the following script to do it: USE ...
4
votes
3answers
11k views

Slow insert in SQL Server 2008

Our products' database contains an audit trail table: CREATE TABLE gn_AuditTable( gn_ObjectId int NULL, gn_Action smallint NULL, gn_Time datetime NULL, gn_UserId int NULL, gn_Login ...
1
vote
1answer
196 views

In a simple table with no complex indexes, does a large number of existing rows slow down an INSERT?

I have this small, simple table: CREATE TABLE `ads_tracker` ( `id` int unsigned NOT NULL AUTO_INCREMENT PRIMARY KEY, `type` smallint unsigned NOT NULL, `reference` smallint unsigned NOT NULL, ...
1
vote
1answer
176 views

Overloaded Database - Batch Updates vs Atomic/Single Updates

We have on overloaded database which is now receiving failed transactions consequently. The proposed solution is to create a 2nd database that taskes all the (ecommerce) transactions initially and ...
5
votes
2answers
2k views

Speed up INSERTs

I need to have a way to insert to a table, fast, synchronous, with minimal duration. What I've tried ("blind") is : Have no index on the table whatsoever Switch to simple logging (from full logging) ...
3
votes
2answers
2k views

How to INSERT row in another database/schema in MySQL

Let's say I have the following database/schema setup with the following tables: SCHEMA_1 (default): TABLE_1 SCHEMA_2: TABLE_2 How do I insert rows in another schema's ...
5
votes
1answer
1k views

Does the order of columns has a significant effect on INSERT?

Do we experience a noticeable difference in performance for these two queries? INSERT INTO table (col1, col2, col3, col4, col5) ... and INSERT INTO table (col5, col3, col1, col2, col4) ... Do we ...
4
votes
3answers
4k views

Is (and if how) it possible in Oracle to “insert into <table> values <rowtype-variable>” if <table> has virtual columns

Here's a table create table tq84_virtual_test_without ( col_1 number, col_2 number, col_3 number, col_4 number, col_5 number ); with the rule that col_5's value is the sum of the other ...
3
votes
2answers
3k views

LOAD DATA (400k rows) INFILE takes about 7 minutes, cannot kill the “logging slow query” process?

MySQL version: 5.5.13 The query that I'm using: SET AUTOCOMMIT=0; LOAD DATA INFILE '/data10/select_into.outfile/v3_zone_date.out' INTO TABLE v3_zone_date FIELDS TERMINATED BY ','; COMMIT; ...
5
votes
1answer
131 views

Find out which columns must be specified in insert-statement

Sometimes when inserting data in a table with many columns it could be useful to know which columns must be specified if the insert-statement shouldn't fail. I wrote this query to find out which ...
1
vote
2answers
692 views

Deny insert/delete for all users in SQL Server 2005

In our database we have about 20 users, that is used be some program (and users are added with this program). Now there was new requirement to use 2 database and do not allow delete data from one ...
1
vote
1answer
618 views

Insert bulk Parent and Children rows using SQL Query

We receive bulk data from our customers in a spread sheet. I loaded them in a temporary table as of now. I tried to normalize the data and create a parent table and each parent to have 4 or 5 child ...
4
votes
3answers
6k views

How can I insert if key not exist with PostgreSQL?

I have a table: CREATE TABLE mytable (id SERIAL, name VARCHAR(10) PRIMARY KEY) Now I want to add names to this table, but only if they not exist in the table already, and in both cases return the ...
1
vote
1answer
673 views

Doing a bulk insert in SQL Server

I have to do the insert operation in the db as follows, I create an item I create 5-10 properties for that item, all these data i get in the form of a collection of objects. I donot want to ...
16
votes
3answers
14k views

Efficient INSERT INTO a Table With Clustered Index

I have a SQL statement that inserts rows into a table with a clustered index on the column TRACKING_NUMBER. E.G.: INSERT INTO TABL_NAME (TRACKING_NUMBER, COLB, COLC) SELECT TRACKING_NUMBER, COL_B, ...
0
votes
1answer
3k views

INSERT INTO remote table on different server with OUTPUT clause gives error

I have a procedure which makes one or two inserts into a remote table. To accomplish the second insert, I need to know the recently inserted Id of the first insert. To make this work my insert clause ...
3
votes
3answers
141 views

Is there any way to temporarily enforce columnar uniqueness on items currently being inserted?

Is there any way to temporarily enforce columnar uniqueness on items currently being inserted? For instance, I'm splitting payments and charges to their own tables from a previously unified ...
1
vote
1answer
507 views

Concurrent INSERTs in XtraDB (InnoDB)

I'm currently unable to insert rows concurrently in an XtraDB table on Percona Server 5.1.54. I had the same problem with a similar version of MySQL. My table definition is as follows. CREATE TABLE ...
3
votes
3answers
236 views

Checking for dupes on Compact Insert Statement

I'm not sure if that is the correct term "Compact Insert Statement" It is just what I have always heard it referred to. It goes as follows: INSERT INTO [tblUsers] ([username], [password]) ...
5
votes
1answer
4k views

How to insert an IP-address into an inet column in PostgreSQL?

I would like to insert an IP-address into a column that has type inet. In what format can I insert the data? is it only binary or is there any way I can insert from text e.g. "192.168.1.082"? Are ...
1
vote
3answers
333 views

Insert to particular location in Oracle DB table?

Suppose I have a table containing the following data: Name | Things ------------- Foo | 5 Bar | 3 Baz | 8 If I want to insert a row, so that the final state of the table is: Name | Things ...
4
votes
1answer
4k views

Getting the “ORA-00911” error when I am trying to insert more than 1 row

Lets say I have the follow insert statements. INSERT INTO E_PRODUCT VALUES ('PCD2', 'PC Dual Core', 499, 22, 475, 'PC', NULL); INSERT INTO E_PRODUCT VALUES ('PCL4', 'Laptop PC', 599, 9, 225, 'PC', ...
4
votes
1answer
2k views

nest SELECT in INSERT

I'm trying to do something like: INSERT INTO stories (vid, ip, body, timestamp) VALUES ( (SELECT vid+1 FROM stories ORDER BY vid DESC LIMIT 1), INET_ATON('127.0.0.1'), 'test', ...
5
votes
2answers
2k views

BULK INSERT - best usage

I need to export 150 million rows of only int/bigint columns from one SQL instance to another. I am using BCP queryout to export the rows and BULK INSERT to import the rows to another table. I split ...
15
votes
4answers
6k views

How can I tell WHY an insert on a certain table is slow?

I know that an INSERT on a SQL table can be slow for any number of reasons: Existence of INSERT TRIGGERs on the table Lots of enforced constraints that have to be checked (usually foreign keys) Page ...