diff --git a/sql/udctables.sql b/sql/udctables.sql
index 2401906..361bdb5 100644
--- a/sql/udctables.sql
+++ b/sql/udctables.sql
@@ -164,16 +164,14 @@ CREATE TABLE IF NOT EXISTS udcconnections (
 
 -- Active sessions table - tracks currently running machines
 CREATE TABLE IF NOT EXISTS udcactivesessions (
-    activeid INT AUTO_INCREMENT PRIMARY KEY,
-    machinenumber VARCHAR(20) NOT NULL,
-    sessionid INT,
+    machinenumber VARCHAR(20) NOT NULL PRIMARY KEY,
+    filepath VARCHAR(255),
     partnumber VARCHAR(50),
     badgenumber VARCHAR(20),
     partsrun INT DEFAULT 0,
-    sessionstart DATETIME,
     lastupdate DATETIME,
-    UNIQUE INDEX idx_machinenumber (machinenumber),
-    INDEX idx_sessionid (sessionid),
+    sessionstart DATETIME,
+    lastseen DATETIME DEFAULT CURRENT_TIMESTAMP,
     INDEX idx_lastupdate (lastupdate)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
@@ -302,6 +300,178 @@ FROM udcmanualrequests r
 JOIN udcparts p ON r.partrunid = p.partrunid
 JOIN udcsessions s ON p.sessionid = s.sessionid;
 
+-- Tool health stats by machine
+CREATE OR REPLACE VIEW vwudctoolhealthbymachine AS
+SELECT
+    s.machinenumber,
+    COUNT(DISTINCT t.toolnumber) AS unique_tools,
+    COUNT(*) AS total_measurements,
+    SUM(t.oot) AS oot_count,
+    ROUND(AVG(t.deviation), 6) AS avg_deviation,
+    ROUND(MAX(ABS(t.deviation)), 6) AS max_deviation,
+    MIN(t.eventtime) AS first_measurement,
+    MAX(t.eventtime) AS last_measurement
+FROM udctooldata t
+JOIN udcsessions s ON t.sessionid = s.sessionid
+GROUP BY s.machinenumber;
+
+-- Tool health stats by tool number (across all machines)
+CREATE OR REPLACE VIEW vwudctoolhealthbytool AS
+SELECT
+    s.machinenumber,
+    t.toolnumber,
+    t.description,
+    COUNT(*) AS measurements,
+    SUM(t.oot) AS oot_count,
+    ROUND(AVG(t.deviation), 6) AS avg_deviation,
+    ROUND(MAX(ABS(t.deviation)), 6) AS max_deviation,
+    MAX(t.eventtime) AS last_measured
+FROM udctooldata t
+JOIN udcsessions s ON t.sessionid = s.sessionid
+GROUP BY s.machinenumber, t.toolnumber, t.description;
+
+-- Out of tolerance measurements detail
+CREATE OR REPLACE VIEW vwudcootdetail AS
+SELECT
+    m.measurementid,
+    s.machinenumber,
+    p.partnumber,
+    p.serialnumber,
+    p.badgenumber,
+    m.eventtime,
+    m.method,
+    m.dimid,
+    m.description,
+    m.minval,
+    m.maxval,
+    m.actualval,
+    m.deviation
+FROM udcmeasurements m
+JOIN udcsessions s ON m.sessionid = s.sessionid
+LEFT JOIN udcparts p ON m.partrunid = p.partrunid
+WHERE m.oot = 1;
+
+-- Tool OOT detail
+CREATE OR REPLACE VIEW vwudctoolootdetail AS
+SELECT
+    t.tooldataid,
+    s.machinenumber,
+    p.partnumber,
+    p.badgenumber,
+    t.eventtime,
+    t.toolnumber,
+    t.description,
+    t.minval,
+    t.maxval,
+    t.actualval,
+    t.deviation
+FROM udctooldata t
+JOIN udcsessions s ON t.sessionid = s.sessionid
+LEFT JOIN udcparts p ON t.partrunid = p.partrunid
+WHERE t.oot = 1;
+
+-- Active sessions with machine details
+CREATE OR REPLACE VIEW vwudcactivesessions AS
+SELECT
+    a.machinenumber,
+    m.hostname,
+    m.alias,
+    bu.businessunit,
+    a.partnumber,
+    a.badgenumber,
+    a.partsrun,
+    a.sessionstart,
+    a.lastupdate,
+    a.lastseen,
+    TIMESTAMPDIFF(MINUTE, a.sessionstart, NOW()) AS runtime_minutes
+FROM udcactivesessions a
+LEFT JOIN machines m ON m.machinenumber = a.machinenumber
+LEFT JOIN businessunits bu ON m.businessunitid = bu.businessunitid;
+
+-- Violations with context
+CREATE OR REPLACE VIEW vwudcviolations AS
+SELECT
+    v.violationid,
+    v.machinenumber,
+    v.eventtime,
+    v.badgenumber,
+    v.itemno,
+    v.crossingdesc,
+    v.previousval,
+    v.currentval,
+    p.partnumber,
+    p.serialnumber
+FROM udcviolations v
+LEFT JOIN udcparts p ON v.partrunid = p.partrunid;
+
+-- Daily production summary
+CREATE OR REPLACE VIEW vwudcdailyproduction AS
+SELECT
+    DATE(p.programstart) AS production_date,
+    s.machinenumber,
+    COUNT(*) AS parts_produced,
+    SUM(p.ootcount) AS total_oot,
+    ROUND(SUM(p.ootcount) * 100.0 / COUNT(*), 2) AS oot_rate,
+    ROUND(AVG(p.cycletime) / 60, 1) AS avg_cycle_minutes,
+    ROUND(AVG(p.changeover) / 60, 1) AS avg_changeover_minutes,
+    ROUND(SUM(p.cycletime) / 3600, 1) AS total_runtime_hours,
+    COUNT(DISTINCT p.badgenumber) AS unique_operators
+FROM udcparts p
+JOIN udcsessions s ON p.sessionid = s.sessionid
+WHERE p.programstart IS NOT NULL
+GROUP BY DATE(p.programstart), s.machinenumber;
+
+-- Error summary by machine
+CREATE OR REPLACE VIEW vwudcerrorsummary AS
+SELECT
+    e.machinenumber,
+    e.errortype,
+    COUNT(*) AS error_count,
+    MIN(e.eventtime) AS first_occurrence,
+    MAX(e.eventtime) AS last_occurrence
+FROM udcerrors e
+GROUP BY e.machinenumber, e.errortype;
+
+-- Connection events summary
+CREATE OR REPLACE VIEW vwudcconnectionsummary AS
+SELECT
+    c.machinenumber,
+    c.eventtype,
+    c.comport,
+    COUNT(*) AS event_count,
+    MAX(c.eventtime) AS last_event
+FROM udcconnections c
+GROUP BY c.machinenumber, c.eventtype, c.comport;
+
+-- Header updates (badge changes) with context
+CREATE OR REPLACE VIEW vwudcheaderupdates AS
+SELECT
+    h.updateid,
+    h.machinenumber,
+    h.eventtime,
+    h.badgenumber,
+    h.description,
+    h.details,
+    p.partnumber,
+    p.serialnumber
+FROM udcheaderupdates h
+LEFT JOIN udcparts p ON h.partrunid = p.partrunid;
+
+-- CLM file import status
+CREATE OR REPLACE VIEW vwudcclmfiles AS
+SELECT
+    f.fileid,
+    f.machinenumber,
+    f.filename,
+    f.filehash,
+    f.filemodtime,
+    f.recordcount,
+    f.importdate,
+    p.partnumber,
+    p.serialnumber
+FROM udcclmfiles f
+LEFT JOIN udcparts p ON f.partrunid = p.partrunid;
+
 -- ============================================================================
 -- Verify
 -- ============================================================================