informix add column

Informix IDS databases are widely used in various industries such as finance, telecommunications, and postal services. It is a multi-threaded relational database server that adopts symmetric multi-processor technology and single-processor

Informix uses lock technology to resolve concurrent control issues with access to the same object in the case of multiuser access to the database. INFORMIX supports complex, scalable locking techniques. Type of lock Informix has three different

First, the following operating environment to make the following assumptions 1. Server-side Server machine Name: Scoserverip Address: 10.0.0.1 Database name: informixserverservicename:sqlexec Port number: 5000/tcp Database user name: Informix

I. Intrinsic functions1. Internal aggregate function1) Count (*) returns the number of rows2) Count (DISTINCT colname) returns the number of unique values in the specified column3) SUM (colname/expression) Returns the value of the specified column

Objective Protecting your data requires a trade-off between security and access capabilities. How do you find the most appropriate way? At present, the company and government have established strict standards for the auditing and control of data,

The following is my ontape-r summary. I just share my experience (because I have seen this post in the Forum, but it is not very detailed) The whole process is only completed in a unique environment that I can access. If you have any mistakes,

PHP Function Index 967 functions A total of 967 functions Abs: Get absolute value. Acos: Gets the inverse cosine value. Ada_afetch: Gets the return column of the database. Ada_autocommit: Switch automatic change function. Ada_close: Close Adabas D

　　Although this is a foreign translation article at the beginning of 99, many contents are also suitable for today's DBA.In recent years, I have been dealing with database administrators and have directly interviewed many DBA jobs. This article will

Hw_GetParents: Gets the ID of the parent class. Hw_GetParentsObj: obtain the information of the parent class. Hw_GetRemote: Gets a remote file. Hw_getremotechil.pdf: obtain remote sub-files. Hw_GetSrcByDestObj: get the object content for the

Hw_GetParents: gets the ID of the parent class. Hw_GetParentsObj: obtain the information of the parent class. Hw_GetRemote: gets a remote file. Hw_getremotechil.pdf: obtain remote sub-files. Hw_GetSrcByDestObj: Get the object content for the