Questions tagged [informix]
Informix is an SQL-based object-relational, OLTP/OLAP, NoSQL DBMS produced by IBM. This tag is appropriate for questions about any of the products with Informix in the product name.
79
questions
1
vote
0
answers
63
views
In Informix, is it possible to copy a database within the same server/host?
Assuming a user has sufficient privileges on the server, is it possible to copy a database in its entirety within the same server/host, using SQL only (i.e. without having shell access to the Linux ...
- 179
0
votes
1
answer
210
views
How to update multiple records using records from another table with join
I'm going to explain this scenario in such a way that it is easy to understand. For example I have 3 tables that I need to join in order to get the value I need for the age.
See below table structure ...
1
vote
2
answers
408
views
Rownum equivalent in Informix SQL?
I want to explore (=looking at the first 100 rows) databases using the Informix SQL dialect.
In Oracle SQL I would use SELCT* FROM table_name WHERE ROWNUM < 100
In Postgress SQL I would use SELCT* ...
- 121
0
votes
1
answer
25
views
Are the Informix and Lucene analyzers similar?
Is the analyzer discussed here same as Lucene analyzers? I am confused because most of them show similar properties to Lucene analyzer but the blog posts don't say a word about Lucene; instead they ...
- 13
3
votes
2
answers
1k
views
What are the various Informix column data types?
I am writing a query where I need to know if a column is of the "BLOB" type of column. According to this documentation 41 is the number for "BLOB" types of columns, in general. ...
1
vote
0
answers
72
views
Informix onunload/onload between different arch
I have some necro-project using Informix Dynamic Server Version 7.31.UD1.
I need to backup-restore database between servers. The thing is, the onload just silently exits and doesn't create a database, ...
- 208
1
vote
3
answers
232
views
count duplicate records and select first 2
I have troubling issue where I want to only select the first 2 chunks of every dbspace created.
query used:
SELECT
a.dbsnum,
b.chknum,
a.name,
b.fname
FROM
sysdbspaces a, syschunks b where a.dbsnum = ...
3
votes
2
answers
599
views
Convert seconds into HH:MM:SS in Informix
How is it possible to convert a float number of seconds to HH:MM:SS in Informix. I have a column that has a run duration of 1449.448520410. I want to convert this to a human-readable format. There are ...
1
vote
1
answer
117
views
Informix onunload/onload to take a snapshot and then restore
I have an Informix database. I want to take a snapshot, make some changes, then restore the database from that snapshot. (If Informix supported nested transactions, I would be using transactions.)
...
- 213
1
vote
2
answers
598
views
case statement using characters for sum value
I have a table that I am trying to pull a single return value on a select saying that either compressions on table is enabled or disabled by using a sum calculator for column value compressed must be ...
0
votes
1
answer
593
views
Informix JDBC login fails, local login succeeds
I'm troubleshooting a "sudden" issue on our somewhat old Informix server (11.50.UC9GE). After years of running without issue (and connecting w/o issue), suddenly today we can't connect to the server ...
- 101
0
votes
2
answers
75
views
Informix v12 substitute for query using multiple with statements
I am trying to convert some PostgreSQL into Informix and factor out the WITH statements in the query below.
I have been unable to locate a solution to factoring out multiple with statements.
The ...
1
vote
0
answers
175
views
IBM Informix - cast decimal to time format
My customer uses an IBM Informix environment to track production information. In the current SharePoint 2013 he was able to show those infos with this query:
Select stillst_grund,sum(charge_bis-...
- 11
2
votes
1
answer
824
views
How do I convert a BIGINT to a DATETIME in Informix 12.1
I'm new to Informix, and I'm trying to convert a bigint to a datetime.
SELECT sdatetime
FROM CallDetail;
Results:
sdatetime
----------
1572509662678
1572518550704
1572519033540
This seems to be the ...
- 123
2
votes
1
answer
463
views
Group records with same value in one row informix
I have 3 records in a table below called systables_growth:
tabname aactn
total_size_kb 32
date_added 2019-08-26 13:00:00
tabname aactn
total_size_kb 37
date_added 2019-...
1
vote
1
answer
504
views
Informix create procedure to query records and drop if value does not exist using select
I am trying to create a procedure that will query a table column to retrieve table names and using this in proc to run a query to do a select if it exists. If it does not exist, delete row(s) from ...
1
vote
1
answer
593
views
Informix trigger to delete records before insert
I am trying to create a trigger to simply delete records from systables_growth table before an insert happens based on the where clause used on the date_added column for records older than a certain ...
2
votes
1
answer
5k
views
How to get all tables in informix database and their sizes in GB?
I can get a crude estimate of table sizes with
SELECT tabname, (rowsize*nrows)/1024/1024/1024 AS tabsize
FROM informix.systables
ORDER BY tabsize DESC
Is there a way to get a more accurate ...
- 123
1
vote
1
answer
2k
views
Create column for values between a range sql
What I want to achieve is to create a new column based on the num_extents between a range and only print the table name below.
This is what I have [table1]:
This is what I want [table2]:
I used a ...
0
votes
1
answer
201
views
How to rename an index in informix using numbering
I am currently facing issue of renaming an index to a number.
I have tried the below:
RENAME INDEX 584_1973_tmp TO '584_1973';
RENAME INDEX 584_1973_tmp TO ' 584_1973';
RENAME INDEX 584_1973_tmp TO "...
0
votes
0
answers
539
views
How to connect Informix to SQL Server as a linked server?
We got to the point that we can see the tables, but we can't see the columns. For the record, all of the tables are called "root.". I don't know what that means in Informix speak. Based on the ...
- 101
0
votes
1
answer
1k
views
how to search for a table across catalogs of informix database?
I would like find schema in which a table exists in Informix database.
I know that we can use below query. But that searches only with a schema.
select tabname from "informix".systables where ...
- 13
0
votes
1
answer
1k
views
Informix - dbaccess vs dbexport to export tables to text files
Currently, we are using the dbaccess utility to export all tables in the Informix database to text files. These are used to "mirror" the database multiple Windows machines running MSSQL Server on a ...
0
votes
1
answer
181
views
Consume data from other database motor from stored procedure in Oracle 12c
I have a project in which you must develop services in Oracle OSB which will call a procedure stored in Oracle 12c. The issue is that I also need data from an Informix database to build those services....
0
votes
0
answers
193
views
Query with LVARCHAR performance in Informix DB
In a maintenance project that it's working with IBM Informix Dynamic Server Version 11.50.FC6 we have to improve the performance of some queries.
One of this queries to the Informix DB fetches a ...
- 1
2
votes
2
answers
2k
views
Connection Issues with Informix OLEDB Provider
I've been trying to establish a OLEDB Connection to an Informix Dynamic Server. (Version IBM Informix Dynamic Server Version 12.10.FC12WE)
Background Info:
A program, which will be used by my ...
- 31
1
vote
1
answer
62
views
Insert constraint issue
Using IBM Informix database.
If I specify order_no manually, the statement works but if I try to increment it within the query, it fails.
Table structure
patkey serial
notetype char(4)
order_no int
...
- 319
1
vote
0
answers
159
views
Most effective way of logging user query activity
We are logging and permanently storing all the queries performed about private persons in our database. Due to GDPR we need to be able to show all the entities who have requested personal data and the ...
- 11
0
votes
0
answers
366
views
Linked server Informix driver mismatch error on driver and applciation
I tried to read all the questions here that has been asked before, but could not find any clue on my problem.
I'm trying to setup a linked server to connect on INFORMIX server, I installed the driver,...
- 31
2
votes
1
answer
168
views
informix rest api not startable
I am currently trying to configure the informix REST API, as specified here.
Overall, I came across two error messages:
Unsupported listener type of rest specified
OP Code is not valid: Check ...
- 23
0
votes
0
answers
377
views
Confusion in Informix when selecting dates with JOIN
I am trying to run a query in Informix, doing a join in a table of logs where we save the record of insertion of the rows.
Notice that the query below brings two results, with different insertion ...
- 523
0
votes
1
answer
604
views
Using character set en_us.364 in Informix database DB_LOCALE
I am trying to change my db_locale to en_us.364 which is an ASCII character set. It says on IBM's Knowledge Center that 364 is a valid character set:
https://www.ibm.com/support/knowledgecenter/en/...
1
vote
0
answers
736
views
Converting and/or enforcing an Ascii Character Set in Informix database from 819 or ISO Latin 1
Overview: In Informix is it possible to enforce ASCII for a database or instance.
Details: I am trying to enforce ASCII in an instance of informix for a while. This is to help have a smooth ...
1
vote
1
answer
208
views
Microsoft Distributed Transactions from Informix with Linux
I need to create an extraction job from an Informix database, the requirement is that I need to enable transactions in SSIS. All of the MSDTC settings of the target machine and the SQL Server database ...
- 523
1
vote
0
answers
215
views
Is there such a thing as result cache for Informix
Informix has SSC (SQL Statement Cache), but that doesn't seem to cache the result of the query.
Is there something else to activate to also cache the result ?
I am using Informix 12.1 on Redhat.
- 111
0
votes
1
answer
158
views
What are the pitfalls of using "Preserve" for Cursor Behavior in Informix ODBC DSN?
I am converting an Informix SE to an IDS database. The programs I have use ODBC System DSNs to communicate with the database.
For SE, we use the sesoctcp protocol. The program code, would open a ...
- 101
4
votes
0
answers
2k
views
How to declare and use variables in Informix
How can I declare and use variables in Informix Database. I'm using version 9.40uc7 and I would like to create two date variables read values into them then compare them using an if statement.
eg....
- 175
0
votes
1
answer
3k
views
How to display values excluding maximum value based on column that is duplicated
I am facing a challenging issue where I need to print all fields from a specfic column based on a duplicate column that excludes the maximum value
My query plan:
select event_no,
bs_id
from ...
-2
votes
2
answers
8k
views
How to create a stored procedure that can insert a record into two tables [Informix]
I need to create a stored procedure that can insert a record into the two tables
I have the two tables below:
create table "sacro".doc_submitted
(
doc_id serial not null constraint "sacro"....
5
votes
1
answer
3k
views
Informix DB export to Microsoft SQL Server 2016
I have an Informix Database and a Microsoft SQL Server 2016.
My task is to dump the whole Informix Database and export it to the Microsoft SQL Server Database.
I installed the Informix SDK 4.5. I ...
- 61
2
votes
0
answers
47
views
Informix Innovator-c and SAN storage: How can we increase Innovator-C parallelism in high latency disk IO situations
When using Innovator-C against SAN storage (which is unavoidable in some cloud infrastructure situations) on a Linux (CentOS 6.x) system, write latency becomes the bottleneck in performance (we've ...
- 121
11
votes
1
answer
10k
views
SQL Server --> Informix DB Linked Server
After about 3 days of trying, I am unable to create a linked server from SQL Server 2016 to Informix 11.5. I haven't tried this with other versions (2008R2, etc) since I wanted to set up the ...
- 3,548
1
vote
1
answer
2k
views
Informix Older than 15 Minutes
How can I do this MySQL statement in an IBM Informix?
select type, channel, teilnr, starttime, endtime, usedtime, host
from online_time
where starttime < DATE_SUB(NOW(),INTERVAL 15 MINUTE)
order ...
- 149
4
votes
2
answers
922
views
Informix - Getting all descendants of a parent
I have a table with two columns, Parent and Child. Need to get the list of all descendants associated with the parent records.
Source Table:
+----+-----------+
| Parent | Child |
+----+-----------+
|...
- 43
1
vote
1
answer
2k
views
Informix instance not starting
When I tried to start the Informix instance in Linux using oninit, it says
WARNING: server initialization failed, or possibly timed out (if -w was used).
Check the message log, online.log, for errors....
- 11
2
votes
1
answer
3k
views
How to check if a table exists in Informix
What would be the query to check that a table exists in Informix ?
0
votes
1
answer
828
views
Informix DBDELIMITER tab
I'm using the Informix DBEXPORT to dump my database however it uses | as its default delimiter.
I know I can specify the delimiter I'd like to use using the DBDELIMITER environment variable but how ...
- 207
1
vote
1
answer
2k
views
Informix Specific Table export
I'm busy trying to migrate data between informix databases using the dbexport and dbimport utilities.
I know that in PostgreSQL I can use the following
pg_dump –a –t table database > /destination/...
- 207
1
vote
1
answer
290
views
Informix Migrate Schema
I'm busy trying to migrate an informix database schema (with no data) to an informix database running on a different server.
I have exported the schema from the database using
dbschema -t all -d ...
- 207
-1
votes
1
answer
831
views
How to migrate an Informix database from IBM AIX to MySQL on Linux [closed]
I have a migration activity where I have to migrate an Informix database which is running on an IBM AIX machine to MySQL running on a RedHat Linux machine. How can I do that?
- 7