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SYS_CHECKSTRINGS
The SYS_CHECKSTRINGS table lists CHECK constraints of the tables.
The columns in the SYS_CHECKSTRINGS system table are described in the following table:
 
Column name
Data type
Description
ID
INTEGER
Table identifier referring to SYS_TABLES.
CONSTRAINT_NAME
WVARCHAR
Name of the CHECK constraint (unique for the table) or an empty string for unnamed constraints (one string for all unnamed CHECK constraints. They are AND- concatenated).
CONSTRAINT
WVARCHAR
The constraint string itself. It is checked by the SQL interpreter while performing inserts/updates to the given table.
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