informix

This question is related to my previous one: RaiseError (PERL, DBI) equivalent for unixODBC C API? As I isolated the problem later, I'll post new question, that is more specific, isolated and without unnecessary information. Version: unixODBC 2.3.0 lib: unixODBC - C API Suppose I have a stored FUNCTION : CREATE FUNCTION "test".func() RETURNING LVARCHAR(1000); set debug file to '/home/directory_does_not_exists/unknown.log'; trace off; trace on; trace off; return 'result is set here'; END FUNCTION; And the same body, but in stored PROCEDURE : CREATE PROCEDURE "test".proc(pDummy SMALLINT) set

Does a command line tool ship with Informix 11.5 similar to SQLCMD for SQL Server? If yes, how do I connect to a remote server and perform regular SELECT/INSERT/UPDATE queries using it? As Michal Niklas says, the standard tool provided with IBM Informix Dynamic Server (colloquially IDS or even just Informix) is DB-Access. However, it is distributed only with IDS itself, not with the Informix Client SDK (CSDK) or Informix Connect (I-Connect) products. If you want to access IDS from a machine that does not have IDS installed, you need either CSDK or I-Connect on the machine, and some other

PostgreSQL的DISTINCT关键字用于与SELECT语句消除所有重复的记录，并获取唯一记录。有可能的情况下，当你有多个重复的表中的记录。虽然取这样的记录，它更有意义，获取唯一的记录，而不是获取重复记录。 语法: DISTINCT关键字消除重复记录的基本语法如下： SELECT DISTINCT column1, column2,.....columnN FROM table_name WHERE [condition] 案例： 1、去重；关键字distinct去重功能 在其他数据库（oracle、mysql、db2、informix）也有。 select distinct idfa from nlogs where recvtime>='2015-09-01 00:00:00' and recvtime<'2015-09-03 00:00:00'; 2、统计不重复个数 select count( distinct ( idfa ) ) from nlogs where recvtime>='2015-09-01 00:00:00' and recvtime<'2015-09-03 00:00:00'; 额外： distinct跟on一起用； 使用DISTINCT ON实现用窗口函数实现的取第一名的功能，这个功能oracle，mysql是没有的

IBM Informix Dynamic Server Version 11.50.FC6 I was working on a small stored procedure that would take name fields from a table and parse them into "user names" with a maximum of 8 chars. This is the code I was trying: CREATE PROCEDURE build_jics_user (pid INT) RETURNING CHAR(8) AS username; SELECT LOWER((SUBSTR(firstname,0,1))||(SUBSTR(lastname,0,7))) username FROM id_rec WHERE id = pid; END PROCEDURE; The error returned when executed is: 659: INTO TEMP table required for SELECT statement. Error in line 5 Near character position 15 I don't understand what the point of summoning a temporary

I am using JPA with Hibernate persistence. We are using JPA in the following configurations. persistence-api 1.0 version hibernate-core 3.3.2.GA version hibernate-entitymanager 3.4.0.GA version Is it possible to use Batch Insert in JPA with above configuration? Please suggest how to do BATCH insert. We want to insert multiple rows in a single table without affecting performance of Database. Also suggest how many row insert is practically possible to use in batch? Thanks in Anticipations JPA itself does not have have specific support for batch insert. However, because you use Hibernate, take a

APDPlat 共支持10种数据库：DB2、DERBY、H2、HSQL、INFORMIX、MYSQL、ORACLE、POSTGRESQL、SQL_SERVER、SYBASE。 数据库的默认配置信息在文件APDPlat_Core/src/main/resources/org/apdplat/db.properties中定义，用户可以根据自己的选择，在APDPlat_Web/src/main/resources/db.local.properties配置文件中覆盖默认配置。 1、如何指定使用哪一种数据库呢？ jpa.database=MYSQL jpa.database 配置项的值可为上述10种数据库之一，10种数据库的JDBC驱动已经集成到APDPlat中，其中5种定义到maven配置文件APDPlat_Web/pom.xml的依赖中，其余5种放置在APDPlat_Web/src/main/webapp/WEB-INF/lib目录中。 2、如何配置数据库连接信息呢？ #mysql db.driver=com.mysql.jdbc.Driver db.url=jdbc:mysql://localhost:3306/${module.short.name}?useUnicode=true&characterEncoding=UTF-8&createDatabaseIfNotExist

DB gurus, I am hoping someone can set set me on the right direction. I have two tables. Table A and Table B. When the system comes up, all entries from Table A are massaged and copied over to Table B (according to Table B's schema). Table A can have tens of thousands of rows. While the system is up, Table B is kept in sync with Table A via DB change notifications. If the system is rebooted, or my service restarted, I want to re-initialize Table B. However, I want to do this with the least possible DB updates. Specifically, I want to: add any rows that are in Table A, but not in Table B, and