db2

问题 I have a table called group , that I am trying to map using hibernate for DB2 and HSQLDB. Table name group is a reserved word and it must be quoted in HSQLDB. However DB2 does not like quoted table name. So this mapping works in HSQLDB but not in DB2: @Entity @Table(name="`group`") public class Group { Mapping results in following error in DB2 (making a query that involves Group table): Caused by: com.ibm.db2.jcc.b.SqlException: DB2 SQL error: SQLCODE: -204, SQLSTATE: 42704, SQLERRMC: SCHEMA

问题 Our current DB Connection provider model relies on database connectivity to use DbConnection (System.Data) based objects. We can connect to DB2 (*Nix * Windows) via OdbcConnection, but we would like to allow the use of native DB2 Drivers. Is there any way to do so (either .Net framework, OpenSource or (last choice) vendor) without breaking away from our current DAL model? 回答1: There is another method not mentioned in the article above, and that is to use DbNetData which simplifies database

问题 I am currently mirroring the DB2 to local MySQL-db with some jdbc-code. I would like to connect DB2 directly from Node.js app without having to query the mirror. I am running on Windows and I cannot change to Linux. It seems that work on DB2 with Node.js is yet very marginal or node-odbc is used (unixODBC bindings for node). I found this project https://github.com/herzi/db2.js which provides DB2-bindings for Node but I cannot install it as the install fails. The package requires Node-gyp

问题 My domain class looks like this: package com.initech.tps class Foo { String stuff static mapping = { // mapping to a legacy table as opposed to letting Grails create it table name: 'FOO', schema: 'TPS' id generator: 'sequence', params: [sequence: 'MY_SEQ'], column: 'FOO_ID', sqlType: 'integer' foo column: 'STUFF' } static constraints = { stuff(nullable: true, maxSize: 40000) } } I was under the impression Grails would figure out to use a CLOB instead of a VARCHAR based on my passing in a big

问题 My domain class looks like this: package com.initech.tps class Foo { String stuff static mapping = { // mapping to a legacy table as opposed to letting Grails create it table name: 'FOO', schema: 'TPS' id generator: 'sequence', params: [sequence: 'MY_SEQ'], column: 'FOO_ID', sqlType: 'integer' foo column: 'STUFF' } static constraints = { stuff(nullable: true, maxSize: 40000) } } I was under the impression Grails would figure out to use a CLOB instead of a VARCHAR based on my passing in a big

问题 I am writing this sql to dynamically calculate certain number of days as below. But I don't know how to make it work because I keep getting the error. select Current Date + ( Dynamic numbr of days calculation here ) from TableName Usually all the guides shows examples as Current Date + 1 Day (this works but not the above) Any ideas how can I get it to work from ? 回答1: select Current Date + Dynamic numbr DAYS FROM TableName e.g. select Current Date + 15 DAYS from TableName here 15 is dynamic

问题 I am using spring boot and spring batch. For meta table i want to use mysql and for all business thing i want to use db2 as a database.When i implemented getting error. application.properties spring.datasource.url = jdbc:mysql://localhost:3306/local spring.datasource.username = root spring.datasource.password = root spring.jpa.show-sql = true spring.jpa.hibernate.ddl-auto = update spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect spring.seconddatasource.url=jdbc

问题 This question already has answers here : DB2 Comma Separated Output by Groups (7 answers) Closed 6 years ago . How do I concatenate multiple rows into a single row using SQL? My database is DB2 TableFoo ------- Id Name 1 Apples 1 Tomatoes 1 Potatoes 2 Banana 2 Peach I want something like ID FruitsAvailable ------------------------- 1 Apples, Tomatoes, Potatoes 回答1: try this SELECT id ,FruitsAvailable FROM (SELECT id , group_concat(Name) as FruitsAvailable FROM TableFoo WHERE id = 1) t HERE

问题 This question already has answers here : DB2 Comma Separated Output by Groups (7 answers) Closed 6 years ago . How do I concatenate multiple rows into a single row using SQL? My database is DB2 TableFoo ------- Id Name 1 Apples 1 Tomatoes 1 Potatoes 2 Banana 2 Peach I want something like ID FruitsAvailable ------------------------- 1 Apples, Tomatoes, Potatoes 回答1: try this SELECT id ,FruitsAvailable FROM (SELECT id , group_concat(Name) as FruitsAvailable FROM TableFoo WHERE id = 1) t HERE