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

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Cannot Run SQL INSERT in MySQL

Neither [vagrant@localhost ~]$ sudo mysql -e "USE books; INSERT INTO authors (id,name,email) VALUES(1,"test","test@gmail.com");" ERROR 1064 (42000) at line 1: You have an error in your SQL syntax; ...
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MySQL: is there a way to make a self-referencing join recursive?

I need to insert some records derived from relationships in the same "pivot" table. We have a products_to_products table which stores relationships between products. Here's a simplified example (also ...
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36 views

Did I Properly Diagnose That It's Not A SQL Server Issue?

We have a job that populates about 450,000 rows nightly in an update/insert job via a stored proc nightly. The .Net app pulls in data from a noSQL DB via an API call then pushes it out via a stored ...
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5k views

Sql server table insert performance optimization

Setting In a datawarehouse, I am joining a fact table to 20 dimensions. The fact table has 32 million rows and 30 columns. This is a temporary staging table so I don't have to deal with other users ...
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632 views

Using EXCEPTION to ignore duplicates during bulk inserts

In pq 9.3.5, I'm importing records from an external source where duplicates are VERY rare, but they do happen. Given a readings table with a unique compound key on (real_time_device_id, recorded_at), ...
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835 views

InnoDB inserts 100 times slower than SQL Server inserts

I have a simple table with two columns: id (autonumber) and name (char(255). When I use C# to insert 100 records in a loop it takes about 30 milliseconds per insert. This is way too slow. So I ...
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272 views

Adding new key(s) to enable partitioning, INSERT performance?

I have a table to storage GPS coordinates with multiple (~30) inserts per second (from 50 different devices) during 12 hours per day, so the table is growing fast, to improve the SELECT speed I was ...
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142 views

Duplicate Key Entry [closed]

I've got a problem on SQL Server 2008 where I'm getting a duplicate key entry error on a process that's worked fine in the past. What is really weird is that if I drop the clustered index, insert the ...
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165 views

MySQL 5.6.19a InnoDB Concurrent Insert [closed]

I've looked through most of the threads on this topic but still had question I was hoping someone would be gracious enough to help with. I am seeing low CPU usage and write latency but transaction ...
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70 views

INSERT missing FK rows at the same time

I found on this site the following SQL-Query to perform an insert (see this post): WITH sel AS ( SELECT val.description, val.type, f.id AS foo_id FROM ( VALUES ('testing', ...
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57 views

(MySQL) Need an “in-place” REPLACE for adjusting historical data

I have a table with around 6,000,000 records. It is backed up every few hours. Recently a script ran that cascade updated about 2,000,000 of the older records to bad values. I have extracted those ...
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342 views

How to insert values into Bridge Table in star schema?

I am modelling my database with respect to star schema with bridge tables. My master Table looks like below. I need to convert this format to star schema. MasterTable StudentNumber | Subject1 | ...
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59 views

Parallel insert in db2

I am trying to import from 8 files and insert into a single table in db2. I am running 8 .sql files that will do the task, but only one of them actually seem to be running and inserting into table. ...
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142 views

How to insert a row which contains a foreign key in mysql

Here's the original question regarding PostgreSQL. I'd like to know of a similar solution for MySql. The simplest syntax provided in the answer works fine as long as the relevant rows already exist ...
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436 views

SQL Server clustered index, index balancing and insert performance using NewID

I have a large (6db) trace table. It has a clustered key (DateTime) which is created through GETDATE(). The connection pool for connections to this database/table rises as high as 50 on average ...
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70 views

work/cache table issues, heavy inserts with heavy reads

we have a work table that stores availability of products. This table is updated with millions of inserts every night and medium amounts of inserts throughout the day. during the updates, we delete ...
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47 views

Oracle Concurrent Insertion

We have simple case like Create table t1 (c1 number primary); session1: insert into t1 values (1); //session1 do not commit transaction session2: insert into t1 values (2); Will Session2 ...
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56 views

Writing a view that caches to another table

I have a table market_trades with columns timestamp, market_id, and amount: api_production=# \d market_trades; Table "public.market_trades" Column | ...
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How to get missing values in row order?

In a table, many rows have been deleted, how to get the id of missing rows for next INSERT? For example id col1 1 1 3 3 4 4 5 5 8 8 9 9 how can I get the ...
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340 views

Oracle - WHY do an ORDER BY for INSERTs AS SELECT?

I have an application that was migrated from MSSQL to Oracle 11G. It needs re-design but that's outside the scope of the project. In short, the application gets legacy data, builds a parent table ...
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67 views

DIRECT and SORTED in H2 and How to insert data with SORTED technique in H2

I was working on H2 Database and read Insert Statement Grammar and found that there are 2 types of insertion DIRECT and SORTED @ http://www.h2database.com/html/grammar.html#insert. As I know that ...
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135 views

Use serial ID for multiple columns and return it from INSERT

I am using Npgsql and I want to be able to do an insert, and if statement that will do an update and then return a value so when ExecuteScalar is called it reads that value. This was done fine in ...
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140 views

Inserting into a table and getting the column names from a collection in PL/SQL

I want to copy data from one table to another and would like to have a rather dynamic insert statement. I have the column names I want to insert into in a collection col_names and was wondering if ...
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121 views

MySQL hook and alter incoming INSERT queries?

We have an application running on a server which parses an xml data feed into SQL queries and executes them continually 24/7. There is a serious issue in the design of the queries and we need to ...
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1k views

Understanding two types of mongodb log entries for bulk inserts

I have an app which does regular (every 2 minutes) bulk inserts to two identical instances of 2.6.4 mongodb on two servers. Both the instances are hosted on 2 Core, 14GB machine and have only one ...
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741 views

Mongodb extremely slow with bulk inserts and showing erratic behavior

I have been massively frustrated by the erratic behaviour of Mongodb's bulk inserts. I'm trying to write 20K documents in a bulk-insert query. Sometimes the inserts take as low as 5 seconds and ...
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How do I maintain high INSERT-performance on PostgreSQL

I'm working on a project which is parsing data from measurement files into a Posgres 9.3.5 database. At the core is a table (partitioned by month) which contains a row for each measurement point: ...
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141 views

Is normalization advisable on transactional data?

I have read a lot of articles about normalized vs denormalized schemas, but I find very little mention of the cost of row insertion. I am considering the impact of converting a 100% denormalized ...
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254 views

What's the difference between INSERT … SELECT and SELECT INTO

Let's say I have a table item and an other one versionned_item. From time to time, I want to copy data from item to versionned_item. What I did is WITH subset AS (SELECT ...) INSERT INTO ...
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31 views

How to append records from one complete table into a partly populated differently formatted table?

I have two tables of interest linked in a MS Access 2007 database. The master table called EMPL_MASTER (from which I only have read access, I cannot make changes) updates every time a system ...
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420 views

Insert results of concat

I have a table with 4 columns: ID ORDER_ID QTY VALUE 1 153 1 0 2 476 1 0 3 453 9 1 4 719 2 2 ...
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2answers
1k views

MySQL ON DUPLICATE KEY UPDATE performance issue

We have a table with over 200k rows. Every row belongs to a category, there are almost 50k rows per category. What is the best way to update all rows of that category? We are using a script like ...
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1answer
521 views

How to get the rowid in a TRIGGER for another table in SQLite

Given the below schema CREATE TABLE Item ( _id INTEGER NOT NULL, name NVARCHAR NOT NULL, parent INTEGER NULL CONSTRAINT fk_Recursive ...
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72 views

Does having a big table that I do not query cause the whole DB to be slower?

I have a log table that I use for logging files sent to clients. I'm not querying that table, just use it for logging (INSERT) and when I need to check when something was sent to clients, usually once ...
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Insert into select into multiple related tables using INSERT_IDENTITY

Okay setting the scene. I have three tables, (Table1, Table2 and DataTable) and I want to insert into Table1 and Table2 using DataTable as source. So for every row in DataTable I want a row in Table1 ...
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SQL insert into … values (…, select(…))

I am trying to insert 25 users, user1...25 into Members with the same GR_ID = 2 with command: insert into MEMBERS (GR_id, username) values (2, (select username from USERS where username like ...
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60 views

After issuing an Insert using NewId() can you get the Ids that were used in that Insert

I would like to know if it is possible to get the last inserted ID's from an Insert with Select NewId()?
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96 views

Trigger on a Schema

Is it possible to create a Trigger on a Schema? I have to audit the changes on my tables. But I have a lot of tables and I don't one to create a trigger on them one by one. --Database level trigger. ...
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Inserting empty string on Windows MySQL doesn't use default value

Why inserting '' on a column with default integer value on MYSQL/WINDOWS produces ERROR 1366 (HY000): Incorrect integer value: '' for column 'id' at row 1 The query is: insert into test2 (id,test) ...
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How can I get status messages during a large re-indexing operation with MySQL 5.5?

I get large data transfers periodically that I used to completely replace the contents of a MySQL table. Each time I do this, I truncate the table, disable keys, add several million rows of data, and ...
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Optimize PostgreSQL for a lot of INSERTS and bytea updates

What we have (software): PostrgeSQL 9.3 with base configuration (no changes in postgresql.conf) Windows 7 64 bit Hardware: Intel Core i7-3770 3.9 Ghz 32 Gb RAM WDC WD10EZRX-00L4HBAta Drive ...
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Disable procedures for data load in MySql using Innodb engine

I have a database with an integrated ledger for a multi-unit company. As we bring new units into the database we load their existing ledger data into ours. Unfortunately the existing procedures on the ...
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420 views

Slow insert - 300+ Million Records

The following query takes over an hour on the table to insert. There are no indexes. There was one which was deleted but still takes an hour after deletion. Any pointers on improving this ...
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61 views

Selecting 3MB (or more/less) data from database server

I installed PostgreSQL Server on my Windows 7 machine. I created database and a simple table, and populated the table. Now I want to connect through the network with my Postgres server and select a ...
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547 views

Negative number of rows inserted

I just ran a rather simple INSERT statement (that I think processed a lot of rows), and I got the message: -1,311,750,183 rows inserted Should I be concerned about the fact that it's negative?
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74 views

Mysql super slow

I have a database of movies that I downloaded, it is around 51mb in size. One of the tables has more than 750k records(all separate insert statements(I believe this is bad)). The rest aren't so bad ...
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79 views

Mutating Error , How to solve it

CREATE OR REPLACE TRIGGER LOAN_RP AFTER INSERT OR UPDATE ON FUND_DISBURSE REFERENCING NEW AS NEW OLD AS OLD FOR EACH ROW DECLARE V_FA FUND_DISBURSE.FUND_AMT%TYPE; V_RC NUMBER (10); ...
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INSERT INTO without duplicates

I want to do this INSERT INTO AdminAccounts (Name) SELECT Name FROM Matrix But I don't want to create duplicates. ie, I ran this a few weeks ago and need to update the data.
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Create SP for inserting data from a table to a table

I have a table that has 1 record where one field may have 2 values separated by commas (in that cases I have to create 2 records with those values separated in 2 row and the other field values are the ...
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62 views

Insert (write) performance

We are trying to speed up the queries in our application and in the process identified all queries which took more than 100ms. We noticed that there were few insert statements which took more than ...