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SQL programmingYou can use the HCL Informix® implementation of the SQL language to develop applications for Informix® database servers.
Guide to SQL: TutorialThe Informix® Guide to SQL: Tutorial shows how to use basic and advanced structured query language (SQL) to access and manipulate the data in your databases. It discusses the data manipulation language (DML) statements as well as triggers and stored procedure language (SPL) routines, which DML statements often use.
Programming for a multiuser environment
How locks workInformix® database servers support a complex, flexible set of locking features that the topics in this section describe.

How locks work

Informix® database servers support a complex, flexible set of locking features that the topics in this section describe.

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