EXTEND

This function appends the specified number of elements to a vector. The appended number of elements are assigned a NULL value, and the syntax is as follows:

SET vectorX = EXTEND (vectorX, 2);

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If the number of elements specified to be appended evaluates to NULL, this function returns NULL.

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If the vector is NULL, an error occurs, indicating that the vector is NULL.

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If the specified number is a negative number, an error occurs.

Refer to the TDV Reference Guide Chapter TDV SQL Script for more information about Vectors and Functions.