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Valid in: ESQL
Declare statement lists one or more names that are used in a program to identify prepared SQL statements.
The declaration of prepared statement names is not required; declare statement is a comment statement, used for documentation in an embedded SQL program. No syntactic elements can be represented by host language variables.
The embedded SQL preprocessor does not generate any code for declare statement. Therefore, in a language that does not allow empty control blocks (for example, COBOL, which does not allow empty IF blocks), this statement must not be the only statement in the block.
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The Declare statement has the following format:
EXEC SQL DECLARE statement_name {, statement_name) STATEMENT
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The following example declares one statement name for a dynamic statement that is executed 10 times:
exec sql declare ten_times statement;
loop while more input
print
'Type in statement to be executed 10 times?';
read statement_buffer;
exec sql prepare ten_times
from :statement_buffer;
loop 10 times
exec sql execute ten_times;
end loop;
end loop;