83 lines
2.7 KiB
SQL
83 lines
2.7 KiB
SQL
CREATE OR REPLACE VIEW obj_columns AS
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WITH x AS (
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SELECT
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app.get_item('$TABLE_NAME') AS table_name
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FROM users u
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WHERE u.user_id = app.get_user_id()
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),
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c AS (
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SELECT
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c.table_name,
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c.column_id,
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c.column_name,
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--
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c.data_type ||
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CASE
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WHEN c.data_type LIKE '%CHAR%' OR c.data_type = 'RAW' THEN
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DECODE(NVL(c.char_length, 0), 0, '',
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'(' || c.char_length || DECODE(c.char_used, 'C', ' CHAR', '') || ')'
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)
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WHEN c.data_type = 'NUMBER' THEN
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DECODE(NVL(c.data_precision || c.data_scale, 0), 0, '',
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DECODE(NVL(c.data_scale, 0), 0, '(' || c.data_precision || ')',
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'(' || c.data_precision || ',' || c.data_scale || ')'
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)
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)
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END AS data_type,
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--
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c.nullable,
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c.data_default,
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--
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CASE WHEN c.column_id = 1 THEN 'Y' END AS is_first,
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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,
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--
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MAX(LENGTH(c.column_name)) OVER(PARTITION BY c.table_name) AS name_length
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FROM user_tab_columns c
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JOIN user_tables t
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ON t.table_name = c.table_name
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CROSS JOIN x
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WHERE t.table_name = NVL(x.table_name, t.table_name)
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AND t.table_name NOT LIKE '%\__$' ESCAPE '\'
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),
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n AS (
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SELECT
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m.table_name,
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m.column_name,
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NULLIF(SUM(CASE WHEN n.constraint_type = 'P' THEN 1 ELSE 0 END), 0) AS count_pk,
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NULLIF(SUM(CASE WHEN n.constraint_type = 'R' THEN 1 ELSE 0 END), 0) AS count_fk,
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NULLIF(SUM(CASE WHEN n.constraint_type = 'U' THEN 1 ELSE 0 END), 0) AS count_uq,
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NULLIF(SUM(CASE WHEN n.constraint_type = 'C' THEN 1 ELSE 0 END), 0) AS count_ch
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FROM user_cons_columns m
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JOIN user_constraints n
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ON n.constraint_name = m.constraint_name
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AND n.constraint_type IN ('P', 'R', 'U', 'C')
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CROSS JOIN x
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WHERE n.table_name = NVL(x.table_name, n.table_name)
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GROUP BY m.table_name, m.column_name
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)
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SELECT
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c.table_name,
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c.column_id,
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c.column_name,
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c.name_length,
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c.data_type,
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--
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n.count_pk,
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n.count_uq,
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n.count_fk,
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--
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NULLIF(n.count_ch - CASE WHEN c.nullable = 'N' THEN 1 ELSE 0 END, 0) AS count_ch,
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--
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CASE WHEN c.nullable = 'N' THEN 'Y' END AS is_nn,
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CASE WHEN c.data_default IS NOT NULL THEN 'Y' END AS is_default,
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--
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m.comments
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FROM c
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LEFT JOIN n
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ON n.table_name = c.table_name
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AND n.column_name = c.column_name
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LEFT JOIN user_col_comments m
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ON m.table_name = c.table_name
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AND m.column_name = c.column_name;
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