bulkupdate

Bulk update in postgreSQL using unnest

跟風遠走 提交于 2019-12-12 01:36:35
问题 I am trying to do bulk update: > update ti_table set enabled=T.enabled from (select * from unnest(array['2001622', '2001624', '2007903']) as id, unnest(array[15,14,8]) as ver, unnest(array['type1', 'type1', 'type1']) as type, unnest(array[false, true, true]) as enabled) T where ti_table.id=T.id AND ti_table.ver=T.ver AND ti_table.type=T.type; However, when I read back: > select id, ver, type, enabled from ti_table where id in ('2001622', '2001624', '2007903'); I see: id | ver | type | enabled

SQLAlchemy Bulk update with custom where clause

半世苍凉 提交于 2019-12-11 17:58:54
问题 using bulk_update_mappings, the approach is: All those keys which are present and are not part of the primary key are applied to the SET clause of the UPDATE statement; the primary key values, which are required, are applied to the WHERE clause. Is there any way to change this rule? I mean to specify a custom where clause as: update Bar set name='a' where family='b' and code = 10 update Bar set name='b' where family='c' and code = 11 update Bar set name='c' where family='d' and code = 12 ....

JPQL Query Bulk UPDATE SET on an ElementCollection field

浪尽此生 提交于 2019-12-11 12:09:45
问题 I have the following JPA Entity I want to update: @Entity(name = "EmployeeImpl") @Table(name = "EmployeeImpl") public class EmployeeImpl { @Id @Column(name = "employeeId") @GeneratedValue(strategy = GenerationType.AUTO) private long id; @ElementCollection private List<String> phonenumber; } I thought I use a namedQuery like so @NamedQuery(name = "updateEmployee", query = "Update EmployeeImpl e SET e.phonenumber :number WHERE e.id = :id") But that doesn't work: Exception Description: Error

How to handle multiple updates / deletes with Elasticsearch?

五迷三道 提交于 2019-12-06 06:42:57
I need to update or delete several documents. When I update I do this: I first search for the documents, setting a greater limit for the returned results (let’s say, size: 10000). For each of the returned documents, I modify certain values. I resent to elasticsearch the whole modified list (bulk index). This operation takes place until point 1 no longer returns results. When I delete I do this: I first search for the documents, setting a greater limit for the returned results (let’s say, size: 10000) I delete every found document sending to elasticsearch _id document (10000 requests) This

Table Valued Constructor Maximum rows limit in Select

岁酱吖の 提交于 2019-12-04 05:29:16
I have a Table Valued Constructor through which am Selecting around 1 million records. It will be used to update another table. SELECT * FROM (VALUES (100,200,300), (100,200,300), (100,200,300), (100,200,300), ..... ..... --1 million records (100,200,300)) tc (proj_d, period_sid, val) Here is my original query : https://www.dropbox.com/s/ezomt80hsh36gws/TVC.txt?dl=0# When I do the above select it is simply showing Query completed with errors with showing any error message. Update : Tried to catch the error message or error number using TRY/CATCH block but no use still same error as previous

Fastest way of performing Bulk Update in C# / .NET

久未见 提交于 2019-12-03 10:06:39
I'm trying to figure out whats the best possible way to perform a bulk update via my mini console application in SQL server. I have written my own way of bulk update like following: SqlCommand command = new SqlCommand(); command.Connection = new SqlConnection("Data Source=.;Initial Catalog=mydb;Integrated Security=SSPI"); command.Connection.Open(); for (int i = 0; i < items.Count; i = i + 1000) { var batchList = items.Skip(i).Take(1000).ToList(); for (int j = 0; j < batchList.Count(); j++) { command.CommandText += string.Format("update Items set QuantitySold=@s_id{0} where ItemID = @id{0};", j

Sqlalchemy bulk update in MySQL works very slow

安稳与你 提交于 2019-11-30 05:39:08
问题 I'm using SQLAlchemy 1.0.0 , and want to make some UPDATE ONLY (update if match primary key else do nothing) queries in batch. I've made some experiment and found that bulk update looks much slower than bulk insert or bulk upsert . Could you please help me to point out why it works so slow or is there any alternative way/idea to make the BULK UPDATE (not BULK UPSERT) with SQLAlchemy ? Below is the table in MYSQL: CREATE TABLE `test` ( `id` int(11) unsigned NOT NULL, `value` int(11) DEFAULT

How to Bulk Update records in Entity Framework?

自古美人都是妖i 提交于 2019-11-27 04:26:09
问题 I am trying to bulk update records using Entity Framework. I have tried Entity Framework.Extensions Update method. The Update method is able to bulk update for a set of records with same set of update values. Example: Id - Quantity Record 1 - A - 10 Record 2 - B - 20 Record 3 - C - 30 We can bulk update all the above records by simple calling Records.Update(new => Record { Quantity = 100 }); How can I bulk update each record with different quantity using Entityframework.Extensions or in any