282 lines
8.7 KiB
SQL
282 lines
8.7 KiB
SQL
SET PATH *LIBL ;
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CREATE OR REPLACE FUNCTION RESTAPI.SFP_GET_DOWNTIME_BREAKDOWN (
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IN_PARM CLOB(2147483647) )
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RETURNS CLOB(2147483647)
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LANGUAGE SQL
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SPECIFIC RESTAPI.SFP_GET_DOWNTIME_BREAKDOWN
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NOT DETERMINISTIC
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MODIFIES SQL DATA
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CALLED ON NULL INPUT
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SET OPTION ALWBLK = *ALLREAD ,
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ALWCPYDTA = *OPTIMIZE ,
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COMMIT = *NONE ,
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DECRESULT = (31, 31, 00) ,
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DYNDFTCOL = *NO ,
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DYNUSRPRF = *USER ,
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SRTSEQ = *HEX
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BEGIN
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DECLARE ENV VARCHAR ( 20 ) DEFAULT '' ;
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DECLARE V_PERIOD CHAR ( 1 ) DEFAULT 'D' ;
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DECLARE V_PLANT VARCHAR ( 15 ) DEFAULT '' ;
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DECLARE V_DEPT VARCHAR ( 15 ) DEFAULT '' ;
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DECLARE V_WC VARCHAR ( 5 ) DEFAULT '' ;
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DECLARE V_SITE VARCHAR ( 3 ) DEFAULT '' ;
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DECLARE LL VARCHAR ( 1024 ) DEFAULT '' ;
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DECLARE V_IN_PARM CLOB ( 2 G ) DEFAULT '' ;
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-- Error handling variables
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DECLARE V_SQLSTATE CHAR ( 5 ) DEFAULT '00000' ;
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DECLARE V_SQLCODE INTEGER DEFAULT 0 ;
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DECLARE V_ERRMSG VARCHAR ( 500 ) DEFAULT '' ;
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DECLARE V_HTTP_STATUS INTEGER DEFAULT 200 ;
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DECLARE V_HAS_ERROR INTEGER DEFAULT 0 ;
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-- Continue handlers for error capture
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DECLARE CONTINUE HANDLER FOR SQLSTATE '22007' -- Invalid datetime
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BEGIN
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SET V_SQLSTATE = '22007' ;
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GET DIAGNOSTICS CONDITION 1 V_ERRMSG = MESSAGE_TEXT ;
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SET V_HTTP_STATUS = 400 ;
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SET V_HAS_ERROR = 1 ;
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END ;
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DECLARE CONTINUE HANDLER FOR SQLSTATE '22003' -- Numeric out of range
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BEGIN
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SET V_SQLSTATE = '22003' ;
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GET DIAGNOSTICS CONDITION 1 V_ERRMSG = MESSAGE_TEXT ;
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SET V_HTTP_STATUS = 400 ;
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SET V_HAS_ERROR = 1 ;
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END ;
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DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' -- No data found
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BEGIN
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SET V_SQLSTATE = '02000' ;
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SET V_ERRMSG = 'No data found for the specified criteria' ;
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SET V_HTTP_STATUS = 404 ;
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SET V_HAS_ERROR = 1 ;
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END ;
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DECLARE CONTINUE HANDLER FOR SQLSTATE '42501' -- Not authorized
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BEGIN
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SET V_SQLSTATE = '42501' ;
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GET DIAGNOSTICS CONDITION 1 V_ERRMSG = MESSAGE_TEXT ;
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SET V_HTTP_STATUS = 403 ;
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SET V_HAS_ERROR = 1 ;
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END ;
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DECLARE CONTINUE HANDLER FOR SQLSTATE '42704' -- Object not found
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BEGIN
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SET V_SQLSTATE = '42704' ;
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GET DIAGNOSTICS CONDITION 1 V_ERRMSG = MESSAGE_TEXT ;
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SET V_HTTP_STATUS = 404 ;
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SET V_HAS_ERROR = 1 ;
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END ;
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DECLARE CONTINUE HANDLER FOR SQLEXCEPTION
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BEGIN
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GET DIAGNOSTICS CONDITION 1
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V_SQLSTATE = RETURNED_SQLSTATE ,
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V_SQLCODE = DB2_RETURNED_SQLCODE , V_ERRMSG = MESSAGE_TEXT ;
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SET V_HTTP_STATUS = 500 ;
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SET V_HAS_ERROR = 1 ;
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END ;
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-- Parse input parameters
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SET V_PERIOD = COALESCE ( UPPER ( JSON_VALUE ( IN_PARM , '$.period' ) ) , 'D' );
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SET V_PLANT = COALESCE ( JSON_VALUE ( IN_PARM , '$.plant' ) , '' ) ;
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SET V_DEPT = COALESCE ( JSON_VALUE ( IN_PARM , '$.department' ) , '' ) ;
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SET V_WC = COALESCE ( JSON_VALUE ( IN_PARM , '$.workcenter' ) , '' ) ;
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SET V_SITE = COALESCE ( JSON_VALUE ( IN_PARM , '$.site' ) , '' ) ;
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-- Extract env handling all input formats (object, array, string)
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SET V_IN_PARM = IN_PARM ;
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WHILE CISTOOLS . JSON_TYPE ( V_IN_PARM ) IN ( 'object' , 'array' , 'string' )
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DO
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SET V_IN_PARM =
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CASE CISTOOLS . JSON_TYPE ( V_IN_PARM )
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WHEN 'object' THEN JSON_VALUE ( V_IN_PARM , '$.env' )
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WHEN 'array' THEN JSON_VALUE ( V_IN_PARM , '$[0]' )
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WHEN 'string' THEN REPLACE ( V_IN_PARM , '"' , '' )
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ELSE TRIM ( V_IN_PARM )
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END ;
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END WHILE ;
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SET ENV = V_IN_PARM ;
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SET LL = CISTOOLS . SET_LIBRARY_LIST ( ENV ) ;
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-- Validate environment was set
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IF ENV = ''
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OR ENV IS NULL THEN
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RETURN
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JSON_OBJECT (
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'error' : JSON_OBJECT (
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'http_status' : 400 , 'sqlstate' : '22001' ,
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'message' : 'Environment parameter is required'
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)
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) ;
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END IF ;
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-- Check for errors from library list setup
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IF V_HAS_ERROR = 1 THEN
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RETURN
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JSON_OBJECT (
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'error' : JSON_OBJECT (
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'http_status' : V_HTTP_STATUS , 'sqlstate' : V_SQLSTATE ,
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'message' : V_ERRMSG
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)
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) ;
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END IF ;
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RETURN
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WITH BOUNDS AS (
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SELECT CURRENT_DATE AS FOR_DATE , 2 AS WEEK_START_DOW ,
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ZONED ( CURRENT_DATE ) AS YYYYMMDD_FOR ,
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ZONED (
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LAST_DAY ( ADD_MONTHS ( CURRENT_DATE , - 1 ) ) + 1 DAY )
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AS YYYYMMDD_MONTH_FROM ,
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ZONED ( LAST_DAY ( CURRENT_DATE ) )
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AS YYYYMMDD_MONTH_THRU ,
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DAYOFWEEK ( CURRENT_DATE ) AS DOW_FOR
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FROM SYSIBM . SYSDUMMY1
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) ,
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WEEK_CALC AS (
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SELECT B . * ,
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MOD ( B . DOW_FOR - B . WEEK_START_DOW + 7 , 7 )
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AS DELTA_DAYS
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FROM BOUNDS B
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) ,
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DATE_RANGE AS (
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SELECT
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CASE
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V_PERIOD
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WHEN 'M' THEN ( YYYYMMDD_MONTH_FROM - 19000000 )
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WHEN
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'W'
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THEN
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( ( YEAR ( FOR_DATE - DELTA_DAYS DAYS ) * 10000
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+
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MONTH ( FOR_DATE - DELTA_DAYS DAYS ) * 100
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+ DAY ( FOR_DATE - DELTA_DAYS DAYS ) ) -
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19000000 )
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ELSE ( YYYYMMDD_FOR - 19000000 )
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END AS FROM_CY ,
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CASE V_PERIOD
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WHEN 'M' THEN ( YYYYMMDD_MONTH_THRU - 19000000 )
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ELSE ( YYYYMMDD_FOR - 19000000 )
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END AS THRU_CY
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FROM WEEK_CALC
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) ,
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-- Group by workcenter and site from host file
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DOWN_BY_WC AS (
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SELECT TRIM ( P . KIWKCTR ) AS WKCTR , TRIM ( P . KISTID ) AS STID ,
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TRIM ( P . KIGRP1 ) AS PLANT , TRIM ( P . KIGRP2 ) AS DEPT ,
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SUM ( P . KIUP ) AS UP_SEC , SUM ( P . KISDWN ) AS SDWN_SEC ,
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SUM ( P . KIUDWN ) AS UDWN_SEC , SUM ( P . KIGAP ) AS GAP_SEC ,
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SUM ( P . KIUA ) AS UA_SEC
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FROM SFCPERI P , DATE_RANGE R
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WHERE P . KIDATE BETWEEN R . FROM_CY AND R . THRU_CY
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AND TRIM ( P . KIGRP1 ) = COALESCE (
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NULLIF ( V_PLANT , '' ) , TRIM ( P . KIGRP1 ) )
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AND TRIM ( P . KIGRP2 ) = COALESCE (
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NULLIF ( V_DEPT , '' ) , TRIM ( P . KIGRP2 ) )
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AND TRIM ( P . KIWKCTR ) = COALESCE (
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NULLIF ( V_WC , '' ) , TRIM ( P . KIWKCTR ) )
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AND TRIM ( P . KISTID ) = COALESCE (
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NULLIF ( V_SITE , '' ) , TRIM ( P . KISTID ) )
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GROUP BY P . KIWKCTR , P . KISTID , P . KIGRP1 , P . KIGRP2
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) ,
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WC_CALCS AS (
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SELECT WKCTR , STID , PLANT , DEPT ,
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DEC ( DEC ( UP_SEC , 31 , 10 ) / 3600 , 13 , 2 )
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AS UPTIME_HOURS ,
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DEC ( DEC ( SDWN_SEC , 31 , 10 ) / 3600 , 13 , 2 )
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AS SCHED_DOWN_HOURS ,
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DEC ( DEC ( UDWN_SEC , 31 , 10 ) / 3600 , 13 , 2 )
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AS UNSCHED_DOWN_HOURS ,
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DEC ( DEC ( GAP_SEC , 31 , 10 ) / 3600 , 13 , 2 )
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AS GAP_HOURS ,
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DEC ( DEC ( UA_SEC , 31 , 10 ) / 3600 , 13 , 2 )
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AS UNAVAIL_HOURS ,
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DEC (
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DEC (
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SDWN_SEC + UDWN_SEC + GAP_SEC + UA_SEC , 31 ,
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10 ) / 3600 , 13 , 2 ) AS TOTAL_DOWN_HOURS ,
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DEC (
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DEC (
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UP_SEC + SDWN_SEC + UDWN_SEC + GAP_SEC , 31 ,
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10 ) / 3600 , 13 , 2 ) AS TOTAL_ELAPSED_HOURS ,
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CASE
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WHEN
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UP_SEC > 0
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THEN
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INT (
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( DECFLOAT ( UP_SEC - UDWN_SEC - GAP_SEC ) /
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DECFLOAT ( UP_SEC ) * 100 ) + 0.5 )
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ELSE 0
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END AS AVAILABILITY_PCT
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FROM DOWN_BY_WC
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) ,
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JSON_WORKCENTERS AS (
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SELECT
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JSON_OBJECT (
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'workcenter' : CAST ( WKCTR AS VARCHAR ( 5 ) CCSID 37 ) ,
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'site' : CAST ( STID AS VARCHAR ( 3 ) CCSID 37 ) ,
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'plant' : CAST ( PLANT AS VARCHAR ( 15 ) CCSID 37 ) ,
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'department' : CAST ( DEPT AS VARCHAR ( 15 ) CCSID 37 ) ,
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'uptimeHours' : COALESCE ( UPTIME_HOURS , 0 ) ,
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'scheduledDownHours' : COALESCE (
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SCHED_DOWN_HOURS , 0 ) ,
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'unscheduledDownHours' : COALESCE (
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UNSCHED_DOWN_HOURS , 0 ) , 'gapHours' : COALESCE (
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GAP_HOURS , 0 ) , 'unavailableHours' : COALESCE (
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UNAVAIL_HOURS , 0 ) , 'totalDownHours' : COALESCE (
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TOTAL_DOWN_HOURS , 0 ) ,
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'totalElapsedHours' : COALESCE (
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TOTAL_ELAPSED_HOURS , 0 ) ,
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'availabilityPercentage' : COALESCE (
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AVAILABILITY_PCT , 0 )
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) AS WC_OBJ
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FROM WC_CALCS
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ORDER BY WKCTR , STID ) ,
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TOTALS AS (
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SELECT SUM ( UPTIME_HOURS ) AS TOTAL_UPTIME ,
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SUM ( SCHED_DOWN_HOURS ) AS TOTAL_SCHED_DOWN ,
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SUM ( UNSCHED_DOWN_HOURS ) AS TOTAL_UNSCHED_DOWN ,
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SUM ( GAP_HOURS ) AS TOTAL_GAP ,
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SUM ( UNAVAIL_HOURS ) AS TOTAL_UNAVAIL ,
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SUM ( TOTAL_DOWN_HOURS ) AS OVERALL_DOWN ,
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SUM ( TOTAL_ELAPSED_HOURS ) AS OVERALL_ELAPSED
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FROM WC_CALCS
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) SELECT JSON_OBJECT (
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'workcenters' : ( SELECT JSON_ARRAYAGG (
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WC_OBJ FORMAT JSON
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)
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FROM JSON_WORKCENTERS ) FORMAT JSON , 'totals' : (
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SELECT JSON_OBJECT (
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'uptimeHours' : COALESCE ( TOTAL_UPTIME , 0 ) ,
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'scheduledDownHours' : COALESCE ( TOTAL_SCHED_DOWN , 0 ) ,
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'unscheduledDownHours' : COALESCE (
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TOTAL_UNSCHED_DOWN , 0 ) , 'gapHours' : COALESCE (
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TOTAL_GAP , 0 ) , 'unavailableHours' : COALESCE (
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TOTAL_UNAVAIL , 0 ) , 'totalDownHours' : COALESCE (
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OVERALL_DOWN , 0 ) , 'totalElapsedHours' : COALESCE (
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OVERALL_ELAPSED , 0 ) , 'availabilityPercentage' :
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CASE
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WHEN
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OVERALL_ELAPSED > 0
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THEN
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INT (
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( DECFLOAT ( TOTAL_UPTIME ) /
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DECFLOAT ( OVERALL_ELAPSED ) * 100 ) +
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0.5 )
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ELSE 0
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END
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)
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FROM TOTALS ) , 'period' : V_PERIOD , 'periodLabel' :
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CASE V_PERIOD
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WHEN 'M' THEN 'Monthly'
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WHEN 'W' THEN 'Weekly'
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ELSE 'Daily'
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END , 'generatedAt' : TO_CHAR (
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CURRENT_TIMESTAMP , 'YYYY-MM-DD HH24:MI:SS' )
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)
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FROM SYSIBM . SYSDUMMY1 ;
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END ;
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GRANT ALTER , EXECUTE
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ON SPECIFIC FUNCTION RESTAPI.SFP_GET_DOWNTIME_BREAKDOWN
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TO AMAPICS WITH GRANT OPTION ;
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GRANT EXECUTE
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ON SPECIFIC FUNCTION RESTAPI.SFP_GET_DOWNTIME_BREAKDOWN
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TO PUBLIC ;
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