SELECT OBJECT_TYPE,OWNER,NAME
,REFERENCED_TYPE REF_OBJECT_TYPE
,REFERENCED_OWNER REF_OWNER
,REFERENCED_NAME REF_NAME
FROM ALL_DEPENDENCIES
WHERE TYPE IN ('VIEW','FUNCTION') --show views and functions
--show the functions and tables that they contain
AND REFERENCED_TYPE IN ('FUNCTION','TABLE')
ORDER BY 1,2,3;


The contents of a SQL Expression field is any valid SQL statement that returns a scalar value. The resulting SQL is added to the report’s SELECT clause. For example:

SELECT PAT_NAME,HOSP_ADMSN_TIME,HOSP_DISCH_TIME,
--SQL Expression
(
SELECT MAX(HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP2
WHERE PAT_ENC_HSP2.PAT_ID=PAT_ENC_HSP.PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < PAT_ENC_HSP.PAT_ENC_CSN_ID
)
--/SQL Expression
FROM PAT_ENC_HSP


Limitations

SQL Expression fields may only return a scalar value (one column and one row).
Parameter fields may not be used in SQL Expressions.

Features

A database [Oracle|SQL Server|Sybase] scalar function may be used in a SQL Expression field.
Case statements may be used in SQL Expression fields. For example (Oracle syntax):

(
CASE
WHEN PAT_ENC_HSP.HOSP_DISCH_TIME IS NULL THEN
'F'
WHEN PAT_ENC_HSP.HOSP_DISCH_TIME >= PAT_ENC_HSP.HOSP_ADMSN_TIME-7 THEN
'T'
ELSE
'F'
END
)


Syntax

The SQL statement needs to be enclosed in parenthesis:

(
SELECT MAX(HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP2
WHERE PAT_ENC_HSP2.PAT_ID=PAT_ENC_HSP.PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < PAT_ENC_HSP.PAT_ENC_CSN_ID
)


Double-quotation marks aren’t required if tables in the main query aren’t aliased:

(
--will compile
SELECT MAX(HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP2
WHERE PAT_ENC_HSP2.PAT_ID=PAT_ENC_HSP.PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < PAT_ENC_HSP.PAT_ENC_CSN_ID
)

(
–will compile
SELECT MAX(“HOSP_DISCH_TIME”)
FROM “PAT_ENC_HSP” “PAT_ENC_HSP2″
WHERE “PAT_ENC_HSP2″.”PAT_ID”=”PAT_ENC_HSP”.”PAT_ID”
AND “PAT_ENC_HSP2″.”PAT_ENC_CSN_ID” < “PAT_ENC_HSP”.”PAT_ENC_CSN_ID”
)
Double-quotation marks are required if tables in the main query are aliased:

(
--will compile
SELECT MAX(HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP_
WHERE PAT_ENC_HSP2.PAT_ID="PAT_ENC_HSP_alias".PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < "PAT_ENC_HSP_alias".PAT_ENC_CSN_ID
)

(
–will not compile
SELECT MAX(HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP_
WHERE PAT_ENC_HSP2.PAT_ID=PAT_ENC_HSP_alias.PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < PAT_ENC_HSP_alias.PAT_ENC_CSN_ID
)
When using aggregate functions in the SQL Expression, do not include the ‘local’ table’s alias:

(
--will not compile
SELECT MAX(PAT_ENC_HSP2.HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP2
WHERE PAT_ENC_HSP2.PAT_ID=PAT_ENC_HSP.PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < PAT_ENC_HSP.PAT_ENC_CSN_ID
)

(
–will compile
SELECT MAX(HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP2
WHERE PAT_ENC_HSP2.PAT_ID=PAT_ENC_HSP.PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < PAT_ENC_HSP.PAT_ENC_CSN_ID
)
When using aggregate functions in the SQL Expression, you can include the ‘main’ query’s table’s alias:

(
--will compile
SELECT MAX(PAT_ENC_HSP.HOSP_DISCH_TIME)
FROM PAT_ENC_HSP PAT_ENC_HSP2
WHERE PAT_ENC_HSP2.PAT_ID=PAT_ENC_HSP.PAT_ID
AND PAT_ENC_HSP2.PAT_ENC_CSN_ID < PAT_ENC_HSP.PAT_ENC_CSN_ID
)


If you are using a SQL Expression as a subquery and wish to link it to the detail row of your main report, do not include the table you wish to link to in the FROM clause of the subquery. For example:

(
SELECT MAX("IP_FLWSHT_MEAS_SP"."MEAS_VALUE")
FROM IP_FLWSHT_MEAS IP_FLWSHT_MEAS_SP,
IP_FLWSHT_REC IP_FLWSHT_REC_SP
WHERE "IP_FLWSHT_MEAS_SP"."FLO_MEAS_ID" in ('11')
AND "IP_FLWSHT_MEAS_SP"."FSD_ID" = "IP_FLWSHT_REC_SP"."FSD_ID"
AND "IP_FLWSHT_REC_SP"."INPATIENT_DATA_ID" = "PAT_ENC_HSP"."INPATIENT_DATA_ID"
)


The above query links to the PAT_ENC_HSP table in the main report by linking to the INPATIENT_DATA_ID field. To accomplish this, PAT_ENC_HSP is omitted from the FROM clause in the query.