Adjust constraints, add indexes and save actions

views/obj_columns.sql

@@ -27,11 +27,7 @@ c AS (
         --
         c.nullable,
         c.data_default,
-        --
-        CASE WHEN c.column_id = 1 THEN 'Y' END AS is_first,
-        CASE WHEN LEAD(c.column_id) OVER(PARTITION BY c.table_name ORDER BY c.column_id) IS NULL THEN 'Y' END AS is_last,
-        --
-        MAX(LENGTH(c.column_name)) OVER(PARTITION BY c.table_name) AS name_length
+        c.avg_col_len
     FROM user_tab_columns c
     JOIN user_tables t
         ON t.table_name         = c.table_name
@@ -59,8 +55,9 @@ SELECT
     c.table_name,
     c.column_id,
     c.column_name,
-    c.name_length,
     c.data_type,
+    c.data_default,
+    c.avg_col_len       AS avg_length,
     --
     n.count_pk,
     n.count_uq,
@@ -68,8 +65,7 @@ SELECT
     --
     NULLIF(n.count_ch - CASE WHEN c.nullable = 'N' THEN 1 ELSE 0 END, 0) AS count_ch,
     --
-    CASE WHEN c.nullable = 'N'              THEN 'Y' END AS is_nn,
-    CASE WHEN c.data_default IS NOT NULL    THEN 'Y' END AS is_default,
+    CASE WHEN c.nullable = 'N' THEN 'Y' END AS is_nn,
     --
     m.comments
 FROM c

views/obj_constraints.sql

@@ -5,6 +5,21 @@ WITH x AS (
     FROM users u
     WHERE u.user_id = app.get_user_id()
 ),
+n AS (
+    SELECT XMLTYPE(DBMS_XMLGEN.GETXML('SELECT c.constraint_name AS name, c.search_condition AS text
+FROM user_constraints c
+WHERE c.table_name = NVL(''' || x.table_name || ''', c.table_name)
+    AND c.constraint_type = ''C''
+')) AS constraint_source
+    FROM x
+),
+s AS (
+    SELECT
+        EXTRACTVALUE(s.object_value, '/ROW/NAME') AS constraint_name,
+        EXTRACTVALUE(s.object_value, '/ROW/TEXT') AS search_condition
+    FROM n
+    CROSS JOIN TABLE(XMLSEQUENCE(EXTRACT(n.constraint_source, '/ROWSET/ROW'))) s
+),
 p AS (
     SELECT
         n.table_name,
@@ -33,6 +48,7 @@ c AS (
         --
         LISTAGG(c.column_name, ', ') WITHIN GROUP (ORDER BY c.position) AS cols,
         --
+        MAX(CASE WHEN s.constraint_name IS NOT NULL     THEN 'Y' END) AS is_nn,
         MAX(CASE WHEN n.generated = 'GENERATED NAME'    THEN 'Y' END) AS is_generated,
         MAX(CASE WHEN n.status = 'DISABLED'             THEN 'Y' END) AS is_disabled,
         MAX(CASE WHEN n.deferrable = 'DEFERRABLE'       THEN 'Y' END) AS is_deferred,
@@ -43,12 +59,16 @@ c AS (
         ON n.table_name         = NVL(x.table_name, n.table_name)
     JOIN user_cons_columns c
         ON c.constraint_name    = n.constraint_name
+    LEFT JOIN s
+        ON s.constraint_name    = n.constraint_name
+        AND s.search_condition  = '"' || c.column_name || '" IS NOT NULL'
     WHERE n.table_name          NOT IN (SELECT object_name FROM RECYCLEBIN)
     GROUP BY n.table_name, n.constraint_name, n.constraint_type
 )
 SELECT
     c.table_name,
     c.constraint_name,
+    c.constraint_name       AS constraint_name_old,
     c.constraint_type,
     c.cols,
     --
@@ -56,10 +76,13 @@ SELECT
     p.primary_cols,
     p.primary_constraint,
     --
+    c.is_nn,
     c.is_generated,
     c.is_disabled,
     c.is_deferred,
-    c.delete_rule
+    c.delete_rule,
+    --
+    TO_CHAR(CASE c.constraint_type WHEN 'P' THEN 1 WHEN 'R' THEN 2 ELSE 3 END) || c.constraint_name AS sort#
 FROM c
 LEFT JOIN p
     ON p.table_name         = c.table_name

views/obj_indexes.sql

@@ -0,0 +1,17 @@
+CREATE OR REPLACE VIEW obj_indexes AS
+WITH x AS (
+    SELECT
+        app.get_item('$TABLE_NAME') AS table_name
+    FROM users u
+    WHERE u.user_id = app.get_user_id()
+)
+SELECT
+    i.table_name,
+    i.index_name,
+    LISTAGG(i.column_name, ', ') WITHIN GROUP (ORDER BY i.column_position) AS cols
+FROM user_ind_columns i
+JOIN x
+    ON i.table_name     = NVL(x.table_name, i.table_name)
+WHERE i.table_name      NOT IN (SELECT object_name FROM RECYCLEBIN)
+GROUP BY i.table_name, i.index_name;
+

views/obj_indexes_missing.sql

@@ -0,0 +1,46 @@
+CREATE OR REPLACE VIEW obj_indexes_missing AS
+WITH x AS (
+    SELECT
+        app.get_item('$TABLE_NAME') AS table_name
+    FROM users u
+    WHERE u.user_id = app.get_user_id()
+),
+f AS (
+    SELECT
+        t.table_name,
+        t.constraint_name                                               AS index_name,
+        LISTAGG(t.column_name, ', ') WITHIN GROUP (ORDER BY t.position) AS cols
+    FROM user_cons_columns t
+    JOIN user_constraints n
+        ON n.constraint_name    = t.constraint_name
+    JOIN x
+        ON n.table_name         = NVL(x.table_name, n.table_name)
+    WHERE n.constraint_type     = 'R'
+        AND n.table_name        NOT IN (SELECT object_name FROM RECYCLEBIN)
+    GROUP BY t.table_name, t.constraint_name
+)
+SELECT
+    app.get_icon('fa-plus-square') AS action,
+    app.get_page_link(951,
+        in_names        => 'P951_TABLE_NAME,P951_INDEX_NAME,P951_INDEX_ADD',
+        in_values       => f.table_name || ',' || f.index_name || ',Y'
+    ) AS action_url,
+    --
+    f.table_name,
+    f.index_name,
+    f.cols,
+    --
+    'CREATE INDEX ' || RPAD(f.index_name, 30) ||
+        ' ON ' || RPAD(f.table_name, 30) || ' (' || f.cols || ') COMPUTE STATISTICS;' AS fix
+FROM f
+LEFT JOIN (
+    SELECT i.table_name, i.index_name, LISTAGG(i.column_name, ', ') WITHIN GROUP (ORDER BY i.column_position) AS cols
+    FROM user_ind_columns i
+    JOIN x
+        ON i.table_name     = NVL(x.table_name, i.table_name)
+    GROUP BY i.table_name, i.index_name
+) i
+    ON i.table_name     = f.table_name
+    AND i.cols          LIKE f.cols || '%'
+WHERE i.index_name      IS NULL;
+