CREATE OR REPLACE VIEW obj_constraints_fix_dt2 AS
WITH x AS (
    SELECT
        app.get_item('$TABLE_NAME') AS table_name
    FROM users u
    WHERE u.user_id = app.get_user_id()
),
s AS (
    SELECT
        a.table_name,
        a.column_name,
        --
        CASE
            WHEN a.data_type = 'NUMBER' THEN
                a.data_type ||
                CASE WHEN a.data_precision IS NOT NULL THEN '(' || a.data_precision || DECODE(a.data_scale, 0, '', ', ' || a.data_scale) || ')' END
            WHEN a.data_type IN ('CHAR', 'VARCHAR', 'VARCHAR2') THEN
                a.data_type || '(' ||
                DECODE(a.char_used, 'C', a.char_length || ' CHAR', a.data_length) || ')'
            ELSE a.data_type
        END AS data_type        
    FROM user_tab_columns a
    JOIN x
        ON a.table_name         = NVL(x.table_name, a.table_name)
    JOIN user_tables t
        ON t.table_name         = a.table_name
    LEFT JOIN user_mviews m
        ON m.mview_name         = a.table_name
    WHERE t.table_name          NOT LIKE '%$' ESCAPE '\'    -- skip DML err tables, audit tables...
        AND m.mview_name        IS NULL                     -- skip materialized views
)
SELECT
    s.column_name,
    s.data_type,
    s.tables,
    s.fix || ';'                AS fix
FROM (
    SELECT
        s.column_name,
        s.data_type,
        --
        LISTAGG('<a href="' ||
            app.get_page_link(951,
                in_names    => 'P951_TABLE_NAME',
                in_values   => s.table_name
            ) || '">' || s.table_name || '</a>', ', ')
            WITHIN GROUP (ORDER BY s.table_name) AS tables,
        --
        LISTAGG('ALTER TABLE ' || LOWER(s.table_name) ||
                ' MODIFY ' || LOWER(s.column_name) || ' ' || s.data_type, '; ')
            WITHIN GROUP (ORDER BY s.table_name) AS fix,
        --
        COUNT(*)                                                            AS count_tables,
        COUNT(DISTINCT s.data_type) OVER (PARTITION BY s.column_name)       AS count_types
    FROM s
    GROUP BY s.column_name, s.data_type
) s
WHERE s.count_types > 1;