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Openedge Data Management: SQL Reference - Product ...

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SYS_CHK_CONSTRS<br />

SYS_CHK_CONSTRS<br />

SYS_KEYCOL_USAGE<br />

SYS_REF_CONSTRS<br />

184<br />

Contains one row for each CHECK CONSTRAINT specified on a user table. The chkclause<br />

column contains the content of the CHECK clause.<br />

Table 40 provides details of the SYS_CHK_CONSTRS table.<br />

Table 40: SYS_CHK_CONSTRS system table<br />

Column name Column data type Column size<br />

chkclause VARCHAR 2000<br />

chkseq INTEGER 4<br />

cnstrname VARCHAR 32<br />

owner VARCHAR 32<br />

tblname VARCHAR 32<br />

Contains one row for each column on which a PRIMARY KEY or FOREIGN KEY is specified.<br />

Table 41 provides details of the SYS_KEYCOL_USAGE table.<br />

Table 41: SYS_KEYCOL_USAGE system table<br />

Column name Column data type Column size<br />

cnstrname VARCHAR 32<br />

colname VARCHAR 32<br />

colposition INTEGER 4<br />

owner VARCHAR 32<br />

tblname VARCHAR 32<br />

Contains one row for each REFERENTIAL INTEGRITY CONSTRAINT specified on a user<br />

table.<br />

Table 42 provides details of the SYS_REF_CONSTRS table.

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