db2

Regex to extract nth token of a string separated by pipes

生来就可爱ヽ(ⅴ<●) 提交于 2020-07-03 13:03:23
问题 I'm new in Regex I need to count and extract tokens from the below sample text: AA||CCCCCCCC|||FFFFFFFFFFF Requesting 4th token I must get a empty '' string, requesting 6th I must get 'FFFFFFFFFFF' Would it be possible to have such regex? Thanks in Advance! PS: For token counting I've used '\|' adding +1 to the result is the string is not empty, surely there another more efficient way to do that using just a regex... 回答1: For DB2 please try this to get the 6th element in the list. This works

THE CURSOR CURSOR NAME IS NOT IN A PREPARED STATE

风格不统一 提交于 2020-06-29 03:33:46
问题 I created Dynamic Stored procedure for select. I'm going to use this generic query for execute multiple select statement, by passing the parameter. DECLARE DESC_CSR CURSOR WITH HOLD FOR V_SQL; SET V_SELECT = 'SELECT ' || SELECT_FIELDS || ' FROM ' || TABLE_NAME || ' WHERE ' || WHERE_CLAUSE || ' WITH UR'; PREPARE V_SQL FROM V_SELECT; OPEN DESC_CSR; I will pass below values. SELECT_FIELDS = B.COLUMN_A INTO HOST_VAR_A TABLE_NAME = TABLE_A A INNER JOIN TABLE_B B ON A.ROW_ID = B.ROW_ID WHERE_CLAUSE

db2 command not found in unix

≡放荡痞女 提交于 2020-06-24 23:21:07
问题 I am trying to execute a simple db2 command in Linux command prompt. but Linux command prompt is not recognizing the command it is giving - bash db2 command not found. but db2 is installed in the Linux machine. command I am trying to execute from Linux command line processor is db2 "create database smaple" Error I am getting is below "If db2 in not a typo you can run the following command to lookup the package that contains the binary" command-not-found db2 -bash: db2: command not found" Is

How can I configure Entity Framework to automatically trim values?

早过忘川 提交于 2020-06-22 04:26:29
问题 I need to make “EF Core 2.1.0” remove white space from Strings fields in queries, “HasConversion” not is not working, can you tell me why? entity.Property(e => e.Name) .HasConversion( new ValueConverter<string, string>(v => v.TrimEnd(), v => v.TrimEnd())); -using DB2 database and .net core 2.1 Query: public List<ItemServico> List() { return _uow._db.ItensServico.ToList(); } 回答1: That's what the varchar type is for, to trim spaces automatically, and efficiently. Manual trim() operations have

How can I configure Entity Framework to automatically trim values?

自古美人都是妖i 提交于 2020-06-22 04:25:08
问题 I need to make “EF Core 2.1.0” remove white space from Strings fields in queries, “HasConversion” not is not working, can you tell me why? entity.Property(e => e.Name) .HasConversion( new ValueConverter<string, string>(v => v.TrimEnd(), v => v.TrimEnd())); -using DB2 database and .net core 2.1 Query: public List<ItemServico> List() { return _uow._db.ItensServico.ToList(); } 回答1: That's what the varchar type is for, to trim spaces automatically, and efficiently. Manual trim() operations have

IBM.Data.DB2.Core throws exception in azure function app

一曲冷凌霜 提交于 2020-06-17 13:26:28
问题 I'm using nuget package IBM.Data.DB2.Core version 1.3.0.100 dll to connect DB2 database from Azure functions with AzureFunctionsVersion V2. Application builds successfully. When I run the application and hit it with Postman I get the exception: System.Private.CoreLib: Exception while executing function: Personal-GetAgencyDownload. AgencyDownload: Could not load file or assembly 'IBM.Data.DB2.Core, Version=1.2.2.201, Culture=neutral, PublicKeyToken=7c307b91aa13d208'. Could not find or load a

IBM.Data.DB2.Core throws exception in azure function app

末鹿安然 提交于 2020-06-17 13:26:15
问题 I'm using nuget package IBM.Data.DB2.Core version 1.3.0.100 dll to connect DB2 database from Azure functions with AzureFunctionsVersion V2. Application builds successfully. When I run the application and hit it with Postman I get the exception: System.Private.CoreLib: Exception while executing function: Personal-GetAgencyDownload. AgencyDownload: Could not load file or assembly 'IBM.Data.DB2.Core, Version=1.2.2.201, Culture=neutral, PublicKeyToken=7c307b91aa13d208'. Could not find or load a

Distinct count on a rolling time window

て烟熏妆下的殇ゞ 提交于 2020-06-17 02:19:47
问题 I want to count the number of distinct catalog numbers that have appeared within the last X minutes. This is usually called a rolling time window. For instance, if I have: row startime orderNumber catalogNumb 1 2007-09-24-15.50 o1 21 2 2007-09-24-15.51 o2 21 3 2007-09-24-15.52 o2 21 4 2007-09-24-15.53 o3 21 5 2007-09-24-15.54 o4 22 6 2007-09-24-15.55 o4 23 7 2007-09-24-15.56 o4 21 8 2007-09-24-15.57 o4 21 For instance, if I want to get this for the last 5 minutes (5 is just one of the

What is the Final Table equivalent for Merge?

北城以北 提交于 2020-06-09 05:02:12
问题 I'm trying to use merge into to insert only new records. I would like to collect the IDs for new records that got inserted and also the IDs for duplicate records that get ignored. Here's the create statement for the table: drop table SSZ_ME_MIS.test_update_table; create table ssz_me_mis.test_update_table ( ID_col int not null generated always as identity, -- Primary Key val_col_1 int not null, val_col_2 varchar(255) not null, constraint pk_test_update_table primary key (ID_col), constraint uq

db2数据库创建索引,删除索引,查看表索引,SQL语句执行计划以及优化建议

久未见 提交于 2020-05-09 16:03:09
db2数据库创建索引,删除索引,查看表索引,SQL语句执行计划以及优化建议 1、建立表索引 create index 索引名 on 表名(列名,列名); 2、删除表索引 drop index 索引名 3、查看表索引 select * from sysibm.sysindexes where tbname='表名'; ---表名区分大小写 或者在后台可以用: describe indexes for table 表名; 4、查看SQL语句执行计划 db2expln -d 库名 -f test.sql -t -g -z ";" > test.exp 5、查看SQL语句索引优化建议 db2advis -d 库名 -i test.sql 来源: oschina 链接: https://my.oschina.net/feixuewuhen/blog/4271872