The following table shows the mappings used by OpenESQL when converting between ODBC SQL and COBOL data types.
| ODBC SQL Type | COBOL Picture | Notes |
|---|---|---|
| SQL_CHAR(n) | PIC X(n) | |
| SQL_NCHAR(n) | PIC X(n) or PIC N(n) | |
| SQL_VARCHAR(n) | PIC X(n) | |
| SQL_NVARCHAR(n) | PIC X(n) or PIC N(n) | |
| SQL_LONGVARCHAR | PIC X(max) or SQL TYPE LONG-VARCHAR(max) | max = 65000 |
| SQL_NTEXT | PIC X(max) or PIC N(max) | max = 65000 |
| SQL_DECIMAL(p,s) or SQL_NUMERIC(p,s) | PIC 9(p-s)V9(S) COMP-3 | p = precision (total number of digits).
s = scale (number of digits after the decimal point). OpenESQL doesn’t support using unsigned packed decimal host variables. |
| SQL_SMALLINT | PIC S9(4) COMP-5 | |
| SQL_INTEGER | PIC S9(9) COMP-5 | |
| SQL_REAL | COMP-1 | |
| SQL_FLOAT | COMP-2 | |
| SQL_DOUBLE | COMP-2 | |
| SQL_BIT | PIC S9(4) COMP-5 | |
| SQL_TINYINT | PIC S9(4) COMP-5 | |
| SQL_BIGINT | PIC S9(18) COMP-3 | |
| SQL_BINARY(n) | PIC X(n) or SQL TYPE BINARY(n) | |
| SQL_VARBINARY(n) | PIC X(n) ) or SQL TYPE VARBINARY(n) | |
| SQL_LONVARBINARY | PIC X(max) or SQL TYPE LONG-VARBINARY(max) | max = 65000 |
| SQL_DATE or SQL_TYPE_DATE | PIC X(10) ) or SQL TYPE DATE | yyyy-mm-dd |
| SQL_TIME or SQL_TYPE_TIME or SQL_SS_TIME2 | PIC X(8) or SQL TYPE TIME or SQL TYPE TIME-RECORD | hh:mm:ss |
| SQL_TIMESTAMP or SQL_TYPE_TIMESTAMP | PIC X(29) or SQL TYPE TIMESTAMP or SQL TYPE TIMESTAMP-RECORD | yyyy-mm-ddhh:mm:ss.ffffff |
| SQL_SS_TIMESTAMPOFFSET | PIC X(34) | yyyy-mm-ddhh:mm:ss.ffffff +/-hh:mm |