Openedge Data Management: SQL Reference - Product ...

OpenEdge SQL system limits
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Table 3: OpenEdge SQL system limits (2 of 2)
Attribute Name Value
Maximum length for a username in a
connect string
TPE_UNAME_LEN 32
Maximum length of an error message TPE_MAX_ERRLEN 256
Maximum number of columns in a
table
Maximum number of bytes that can
be inserted in a large key entry
Maximum number of bytes that can
be inserted in a small key entry
Maximum length of a CHECK
constraint clause
Maximum number of nesting levels in
an SQL statement
Maximum number of table references
in an SQL statement: other platforms
Maximum size of input parameters
for an SQL statement
Maximum number of outer references
in an SQL statement
Maximum nesting level for view
references
Maximum number of check
constraints in a table
Maximum number of foreign
constraints in a table
TPE_MAX_FIELDS 5000
MAX_KEY_DATA_SIZE 1980
SMALL_KEY_DATA_SIZE 193
SQL_MAXCHKCL_SZ 240
SQL_MAXLEVELS 25
SQL_MAXTBLREF 250
SQL_MAXIPARAMS_SZ 512
SQL_MAX_OUTER_REF 25
MAX_VIEW_LEVEL 25
SQL_MAXCHKCNSTRS 1000 total
constraints per
table
SQL_MAXFRNCNSTRS 1000 total
constraints per
table
Maximum LOB length SQL_MAXLOB 1 GB