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Informix Cannot Create Unique Index On Column With Duplicate Data

CREATE FUNCTION circleArea( radius FLOAT ) RETURNS float WITH (NOT VARIANT); RETURN 3.14159 * radius * radius; END FUNCTION; Create a functional index on the area of the circle. For example, if you have an index on column c1 and you issue the query select c1 from t1 where c1 < 10, then the index contains all of the information A functional index can be a B-tree index, an R-tree index, or a user-defined secondary access method. A 99-percent FILLFACTOR value allows room for at least one insertion per node. his comment is here

Using util a/17/14 and matching against the file_list I see that z00h_id and z02_id are missing. share|improve this answer edited Jan 28 '09 at 13:07 answered Jan 28 '09 at 12:20 Jonas Lincoln 6,26062642 THAT scares the hell out of me (first quote). See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> You point to a field and say, that's primary. http://www.oninit.com/errorcode/index.php?pageid=-371

Related Information Related statements: ALTER INDEX, CREATE OPCLASS, CREATE TABLE, DROP INDEX, and SET Database Object Mode For a discussion of the structure of indexes, see your Administrator's Reference. Bug details contain sensitive information and therefore require a Cisco.com account to be viewed. If you are going to need replication use a GUID instead of an integer, but for the most part I prefer a key that is user readable especially if they need We’ve finished unloading the data from the source systemsuccessfully.But, during perform installation of SAP 4.6D on Target system (Solaris10/DB2 v, the R3SETUP has terminated due to the followingError Message: ‘SQL0603N

If your server is configured with IFX_EXTEND_ROLE set to OFF, then you can create the C UDRs regardless of whether or not you have the EXTEND role. Identifier, p. 4-205 dbslice Name of the dbslice that contains all of the index fragments The dbslice must exist when you execute the statement. we use the CD SAP R/3 4.6C SR2 (51031999)2. The clause cannot refer to any SPL routine.

All leave nodes are at the same level. Effects of Unique Constraints on Sort Order Options When a column or list of columns is defined as unique in a CREATE TABLE or ALTER TABLE statement, the database server implements Dev centers Windows Office Visual Studio Microsoft Azure More... To disable an index, you must first drop the table from the publication.

The FILLFACTOR option takes effect only when you build an index on a table that contains more than 5,000 rows and uses more than 100 table pages, when you create an For more information about the ONCONFIG file and the parameters you can use with ONCONFIG, see your Administrator's Guide. So you cannot create a new index on a column or set of columns if a disabled index on that column or set of columns already exists. Though this improves performance, it is not an optimal solution because the table is larger and all applications that manipulate or access the data must include logic that handles ucname.

A GK index depends on a table when the table appears in the FROM clause of the index. https://quickview.cloudapps.cisco.com/quickview/bug/CSCuo51115 share|improve this answer answered Apr 11 '13 at 8:42 Chirag 1,8601312 add a comment| up vote -1 down vote In MSSQL, Primary keys should be monotonically increasing for best performance on He has worked as an R&D intern and a test intern for a year at Cadence Design Systems, and now has worked for IBM for the past one year as an Informix Guide to SQL: Syntax, Version 9.2 Copyright 1999, Informix Software, Inc.

Since any table involved in a GK index needs to be a static type, UPDATE, DELETE, INSERT, and LOAD operations may not be performed on such a table until the dependent this content Example: Functional index on the area of a circle This example shows how to create a functional index on the area of a circle. share|improve this answer edited Jan 28 '09 at 12:02 answered Jan 28 '09 at 11:47 empi 10.7k74468 There is overhead when new rows are inserted or that column is UPDATE: As far as I know it is not possible to replicate tables without primary keys in MSSQL, at least without problems (details).

For more information on creating unique constraints, see the CREATE TABLE or ALTER TABLE statements. Identifier, p. 4-205 function Name of the user-defined function used as a key to this index This must be a nonvariant function. When you create a clustered index the constrid of any unique or referential constraints on the associated table changes. weblink Required fields are indicated with an asterisk (*).

If you do, it will be used as input to the "List/Delete" choice which comes up next (see below), and will be interpreted as a choice of the default (List) -- Refer to the user documentation for your custom access method for more information. Database Object Name, p. 4-50 synonym Synonym for the table from which you want to retrieve data The synonym and the table to which the synonym points must exist.

For more information on UNIQUE constraints, see Unique Constraints and Check Constraints.When you create a unique index, you can set an option to ignore duplicate keys.

It must be a static table. An R-tree index is good for searches on multi-dimensional data (such as box, circle, and so forth). Prashanth Rao] How To Ask Questions The Smart Way,BaaNBoard,NPRao NPRao View Public Profile Visit NPRao's homepage! This is because st_distance() is not a member of the st_geometry_ops() operator class.

The following examples show specific uses. To see what column a particular index is built on, go to the util a/17/14 for a library where the index *does* exist, such as the corresponding USMnn library. Refer to your IDS documentation for complete information regarding optimizer-related SQL directives. http://urldt.com/informix-cannot/informix-cannot-write-blob.html The optimizer uses the index during query execution.

Thus, you cannot use a violations table to detect the erroneous rows in the base table. She has worked for IBM since January 2005 and joined the IBM Informix Dynamic Server Optimizer team in November 2006. Note that we specify HANDLESNULLS so that IDS allows our function to return a value when the column value is NULL. Database Engine Features and Tasks Database Features Indexes (Database Engine) Indexes (Database Engine) Create Unique Indexes Create Unique Indexes Create Unique Indexes Heaps (Tables without Clustered Indexes) Clustered and Nonclustered Indexes

Registered users can view up to 200 bugs per month without a service contract. Share: Carla Wilcox ([email protected]), Software Engineer, Informix Dynamic Server/Optimizer Team, IBM, Software Group Close [x] Carla Wilcox has worked as a Software Engineer since October 1981. This time the index is enabled, and no integrity violation error message is returned because all rows in the target table now satisfy the new unique-index requirement. Identifier, p. 4-205 The index-key value can be one or more columns that contain built-in data types.

Your display name must be unique in the developerWorks community and should not be your email address for privacy reasons. This is my experience having seen and managed or queried data from or imported data from hundreds of databases that store data about many differnt types of information. –HLGEM Aug 20