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Client APIs and toolsYou can use the HCL OneDB™ implementation of client APIs to develop applications for HCL OneDB™ database servers.
ESQL/C GuideThe HCL OneDB™ ESQL/C Programmer's Manual explains how to use , the HCL OneDB™ implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities.
What is HCL OneDB™ ESQL/C?
Character and string data typesThese topics explain how to use character data types in the HCL® OneDB® ESQL/C program.
Fetch and insert character data types
Fetch and insert lvarchar dataWhen an application uses a lvarchar host variable to fetch or insert a data value, must ensure that the value fits into the host variable or database column.
Fetch lvarchar data

Fetch lvarchar data

An application can fetch data from a database column of type LVARCHAR into a character (char, string, fixchar, varchar, or lvarchar) host variable. If the column data does not fit into the host variable, truncates the data. To notify the user of the truncation, performs the following actions:

It sets the sqlca.sqlwarn.sqlwarn1 warning flag to W and the SQLSTATE variable to 01004.
It sets any indicator variable that is associated with the character host variable to the size of the character data in the column.

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