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Generate 1 view for all DML tables

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This commit is contained in:
Jan Kvetina 2022-01-31 21:28:42 +01:00
parent e0789cc3c7
commit 21f9ca4949
2 changed files with 99 additions and 0 deletions
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7
packages/app.spec.sql
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@ -1305,6 +1305,13 @@ CREATE OR REPLACE PACKAGE app AS
--
-- Merge all DML error tables (_E$) into single view
--
PROCEDURE create_dml_errors_view;
--
-- Refresh views source (convert views source from LONG to searchable lines)
--

92
packages/app.sql
View File

@ -3024,6 +3024,98 @@ CREATE OR REPLACE PACKAGE BODY app AS
PROCEDURE create_dml_errors_view
AS
q_block VARCHAR2(32767);
q CLOB;
comments DBMS_UTILITY.LNAME_ARRAY; -- TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER;
BEGIN
app.log_module();
--
DBMS_LOB.CREATETEMPORARY(q, TRUE);
-- backup view columns comments
FOR c IN (
SELECT table_name, column_name, comments
FROM user_col_comments
WHERE table_name = app.view_dml_errors
) LOOP
comments(comments.count) :=
'COMMENT ON COLUMN ' || c.table_name || '.' || c.column_name ||
' IS ''' || REPLACE(c.comments, '''', '''''') || '''';
END LOOP;
-- create header with correct data types
q_block := q_block || 'CREATE OR REPLACE VIEW ' || app.view_dml_errors || ' AS' || CHR(10);
q_block := q_block || 'SELECT' || CHR(10);
q_block := q_block || ' --' || CHR(10);
q_block := q_block || ' -- THIS VIEW IS GENERATED' || CHR(10);
q_block := q_block || ' --' || CHR(10);
q_block := q_block || ' 0 AS log_id,' || CHR(10);
q_block := q_block || ' ''-'' AS operation,' || CHR(10);
q_block := q_block || ' ''-'' AS table_name,' || CHR(10);
q_block := q_block || ' ''UROWID'' AS table_rowid,' || CHR(10);
q_block := q_block || ' ROWID AS dml_rowid,' || CHR(10);
q_block := q_block || ' ''-'' AS error_message,' || CHR(10);
q_block := q_block || ' ''-'' AS json_data' || CHR(10);
q_block := q_block || 'FROM DUAL' || CHR(10);
q_block := q_block || 'WHERE ROWNUM = 0' || CHR(10);
--
DBMS_LOB.WRITEAPPEND(q, LENGTH(q_block), q_block);
q_block := '';
-- append all existing tables
FOR c IN (
SELECT
t.table_name AS data_table,
a.table_name AS error_table,
--
LISTAGG(c.column_name, ', ') WITHIN GROUP (ORDER BY c.column_id) AS list_columns
FROM user_tables t
JOIN all_tables a
ON a.owner = COALESCE(app.dml_tables_owner, app.get_owner(app.get_app_id()))
AND a.owner || '.' || a.table_name = app.get_dml_table(t.table_name)
JOIN all_tab_cols c
ON c.owner = a.owner
AND c.table_name = a.table_name
AND c.column_name NOT LIKE 'ORA_ERR_%$'
GROUP BY t.table_name, a.table_name
ORDER BY 1
) LOOP
app.log_result(c.data_table, c.error_table);
--
q_block := 'UNION ALL' || CHR(10);
q_block := q_block || 'SELECT' || CHR(10);
q_block := q_block || ' TO_NUMBER(t.ora_err_tag$),' || CHR(10);
q_block := q_block || ' t.ora_err_optyp$,' || CHR(10);
q_block := q_block || ' ''' || c.data_table || ''',' || CHR(10);
q_block := q_block || ' CAST(t.ora_err_rowid$ AS VARCHAR2(30)),' || CHR(10);
q_block := q_block || ' t.ROWID,' || CHR(10);
q_block := q_block || ' t.ora_err_mesg$,' || CHR(10);
--
q_block := q_block || ' JSON_OBJECT(' || c.list_columns || ' ABSENT ON NULL)' || CHR(10);
q_block := q_block || 'FROM ' || c.error_table || ' t' || CHR(10);
--
DBMS_LOB.WRITEAPPEND(q, LENGTH(q_block), q_block);
END LOOP;
--
EXECUTE IMMEDIATE q;
-- add comments
FOR i IN comments.FIRST .. comments.LAST LOOP
EXECUTE IMMEDIATE comments(i);
END LOOP;
--
app.log_success();
EXCEPTION
WHEN app.app_exception THEN
RAISE;
WHEN OTHERS THEN
app.raise_error();
END;
PROCEDURE refresh_user_source_views (
in_view_name VARCHAR2 := NULL,
in_force BOOLEAN := FALSE