我想在存储过程中捕获合并和插入语句的审核,并且我已经尝试通过按会话从QUERY_HISTORY获取查询ID来使用Result_Scan。但是,JavaScript过程中不允许使用这些语句。然后,我创建了一个函数,用于获取最新执行的SQL查询的查询ID。
create or replace function GET_QUERY_ID()
RETURNS VARCHAR
AS 'SELECT QUID FROM (SELECT (QUERY_ID)::VARCHAR AS QUID FROM TABLE(INFORMATION_SCHEMA.QUERY_HISTORY_BY_SESSION(CURRENT_SESSION()::NUMBER)) WHERE QUERY_TYPE IN (''INSERT'',''MERGE'') ORDER BY END_TIME DESC ) LIMIT 1';
并尝试为行数创建另一个函数
create or replace function GET_RESULT_SCAN(P_QUERY_ID VARCHAR)
RETURNS TABLE ( INSERT_ROWS NUMBER ,UPDATED_ROWS NUMBER)
AS 'select * from (select "number of rows updated"::NUMBER as INSERT_ROWS, "number of multi-joined rows updated"::NUMBER as UPDATED_ROWS from table(result_scan(P_QUERY_ID)))';
但是这不起作用,这些函数我无法在用JavaScript创建的存储过程中调用。 请让我知道最佳实践,以捕获对存储过程中插入和更新的行数的审核。假设在存储过程中有5-10条SQL语句。
答案 0 :(得分:0)
尝试在存储过程定义的顶部添加以调用者身份执行行 :
CREATE [ OR REPLACE ] PROCEDURE <name> ( [ <arg_name> <arg_data_type> ] [ , ... ] )
RETURNS <result_data_type> [ NOT NULL ]
LANGUAGE JAVASCRIPT
[ { CALLED ON NULL INPUT | { RETURNS NULL ON NULL INPUT | STRICT } } ]
[ VOLATILE | IMMUTABLE ]
[ COMMENT = '<string_literal>' ]
[ EXECUTE AS { CALLER | OWNER } ]
AS '<procedure_definition>'
答案 1 :(得分:0)
这是一个简单的过程,该过程进行合并并捕获并返回插入和更新的行数:
CREATE OR REPLACE PROCEDURE utl.arch_merge_sp(P_STAGE_TBL VARCHAR, P_FINAL_TBL VARCHAR)
RETURNS STRING
LANGUAGE JAVASCRIPT
EXECUTE AS CALLER
AS $$
var sqlCmd = "";
var sqlStmt = "";
var result = "";
try {
sqlCmd = `
MERGE INTO final_t F USING stage_t S
ON F.KEY_ID = S.KEY_ID
WHEN MATCHED THEN UPDATE SET
F.ATTR_NM = S.ATTR_NM
,F.ATTR_NBR = S.ATTR_NBR
WHEN NOT MATCHED THEN INSERT (
F.KEY_ID
,F.ATTR_NM
,F.ATTR_NBR
) VALUES (
S.KEY_ID
,S.ATTR_NM
,S.ATTR_NBR);
`;
sqlStmt = snowflake.createStatement( {sqlText: sqlCmd} );
rs = sqlStmt.execute();
sqlCmd =
`SELECT "number of rows inserted", "number of rows updated"
FROM TABLE(RESULT_SCAN(LAST_QUERY_ID()))`;
sqlStmt = snowflake.createStatement( {sqlText: sqlCmd} );
rs = sqlStmt.execute();
rs.next();
result += "Rows inserted: " + rs.getColumnValue(1) + ", Rows updated: " + rs.getColumnValue(2)
}
catch (err) {
result = "Failed: Code: " + err.code + " | State: " + err.state;
result += "\n Message: " + err.message;
result += "\nStack Trace:\n" + err.stackTraceTxt;
}
return result;
$$;
答案 2 :(得分:0)
我需要记录每个SQL的start_timestamp和end_timestamp的记录计数。因为当我尝试获取当前时间戳并将其存储在变量中时。 然后尝试与计数一起进入“审核”表。将时间戳格式更改为字符串。获取每个SQL的开始和结束时间戳的好方法是什么