<\/span><\/h3>\n\n\n\n\u901a\u8fc7 GET DIAGNOSTICS \u83b7\u5f97\u5f02\u5e38\u53d1\u751f\u65f6\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n
GET [CURRENT | STACKED] DIAGNOSTICS\n{\n statement_information_item [, statement_information_item] ...\n | CONDITION condition_number condition_information_item\n [, condition_information_item] ...\n}\nstatement_information_item:\n target = statement_information_item_name\ncondition_information_item:\n target = condition_information_item_name\nstatement_information_item_name:\n NUMBER\n | ROW_COUNT\ncondition_information_item_name: {\n CLASS_ORIGIN\n | SUBCLASS_ORIGIN\n | RETURNED_SQLSTATE\n | MESSAGE_TEXT\n | GBASE_ERRNO\n | CONSTRAINT_CATALOG\n | CONSTRAINT_SCHEMA\n | CONSTRAINT_NAME\n | CATALOG_NAME\n | SCHEMA_NAME\n | TABLE_NAME\n | COLUMN_NAME\n | CURSOR_NAME\n}\n<\/code><\/pre>\n\n\n\n<\/span>statement_information_item<\/span><\/h4>\n\n\n\nstatment \u6267\u884c\u60c5\u51b5\u4fe1\u606f\u6355\u83b7\u53cd\u9988\uff0c\u5305\u62ec NUMBER\u3001ROW_COUNT<\/p>\n\n\n\n
number\uff1anumber \u4e2d\u5305\u542b WARNING \u548c\u9519\u8bef\u7684\u6570\u91cf\u3002<\/p>\n\n\n\n
row_count\uff1a\u53ea\u8bb0\u5f55 GET DIAGNOSTICS \u547d\u4ee4\u4e4b\u524d\u6700\u540e\u4e00\u6761 DML \u64cd\u4f5c\u7684\u5f71\u54cd\u884c\u6570\uff0c\u4e0d\u80fd\u7d2f\u52a0\uff0c\u5982\u679c\u60f3\u83b7\u53d6\u591a\u6761 DML \u8bed\u53e5\u7684\u5f71\u54cd\u884c\u6570\uff0c\u9700\u8981\u5728\u6bcf\u6761 DML \u8bed\u53e5\u540e\u6267\u884c GET DIAGNOSTICS\u547d\u4ee4\u3002<\/p>\n\n\n\n
<\/span>condition_information_item<\/span><\/h4>\n\n\n\n\u6355\u83b7\u5f02\u5e38\u60c5\u51b5\u4fe1\u606f\uff0c\u5982\u4e0b3\u4e2a\u662f\u6700\u5e38\u89c1\u7684\u3002<\/p>\n\n\n\n
gbase_errno\uff1a\u8bb0\u5f55\u9519\u8bef\u53f7\u3002<\/p>\n\n\n\n
returned_sqlstate\uff1a\u8bb0\u5f55\u9519\u8bef\u72b6\u6001\u3002<\/p>\n\n\n\n
message_text\uff1a\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n\n\n\n
<\/span>\u5b9a\u4e49\u5f02\u5e38\u6761\u4ef6\u4fe1\u606f\u7684\u522b\u540d<\/span><\/h3>\n\n\n\nDECLARE condition_name CONDITION FOR condition_value\ncondition_value:\n SQLSTATE [VALUE] sqlstate_value\n | gbase_error_code\n<\/code><\/pre>\n\n\n\ncondition_name\uff1a\u81ea\u5b9a\u4e49\u7684\u6761\u4ef6\u4fe1\u606f\u540d\u5b57<\/p>\n\n\n\n
condition_value\uff1a\u4e0edeclare handler\u7684\u76f8\u540c\u3002<\/p>\n\n\n\n
<\/span>\u8bf4\u660e<\/span><\/h2>\n\n\n\nGBase 8a\u7684\u5b58\u50a8\u8fc7\u7a0b\u5f02\u5e38\u5904\u7406\uff0c\u53ea\u80fd\u5728\u5b58\u50a8\u8fc7\u7a0b\u5185\u90e8\uff0c\u901a\u8fc7declare\u58f0\u660e\u8981\u5904\u7406\u7684\u5f02\u5e38\u5185\u5bb9\u3002\u5f53\u5f02\u5e38\u53d1\u751f\u65f6\uff0c\u6700\u63a5\u8fd1\u7684\u4e0a\u4e00\u7ea7declare\u5339\u914d\u5e76\u751f\u6548\u3002\u5728\u5f02\u5e38\u5904\u7406\u5185\u90e8\uff0c\u53ef\u4ee5\u901a\u8fc7get DIAGNOSTICS \u83b7\u5f97\u5f02\u5e38\u53d1\u751f\u65f6\u7684\u4e0a\u4e0b\u6587\u73af\u5883\u4fe1\u606f\u3002<\/p>\n\n\n\n
<\/span>\u6837\u4f8b<\/span><\/h2>\n\n\n\n<\/span>\u6700\u57fa\u672c\u7684<\/span><\/h3>\n\n\n\n\u5982\u4e0b\u6355\u83b7\u6240\u6709SQL\u9519\u8bef\uff0c\u5e76\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u62a5\u9519\u7684session\u53d8\u91cf\u4fe1\u606f\u3002<\/p>\n\n\n\n
drop procedure if exists p_test;\ndelimiter \/\/\ncreate procedure p_test()\nbegin\n declare exit handler for sqlexception \n begin \n set @errsing=1; \n end;\nend\/\/\ndelimiter ;<\/code><\/pre>\n\n\n\n<\/span>\u81ea\u5b9a\u4e49\u5f02\u5e38\u6761\u4ef6\u4fe1\u606f\u7684\u522b\u540d<\/span><\/h3>\n\n\n\n\u4e3b\u8981\u662f\u81ea\u5b9a\u4e49\u7684\u540d\u5b57\u66f4\u5bb9\u6613\u8bc6\u522b\u3002\u5982\u4e0b\u5b9a\u4e49\u4e86\u4e00\u4e2a\u672a\u77e5\u8868\u540d\u7684\u6761\u4ef6\u7684\u522b\u540d\u3002<\/p>\n\n\n\n
drop procedure if exists p_test;\ndelimiter \/\/\ncreate procedure p_test()\nbegin\n declare d_unknown_table condition for SQLSTATE '42S02';\n declare exit handler for d_unknown_table \n begin \n set @err_sign=1; \n end;\n select * from t_not_exists;\nend\/\/\ndelimiter ;\ncall p_test();\nselect @err_sign;<\/code><\/pre>\n\n\n\n\u6267\u884c\u6548\u679c\u5982\u4e0b<\/p>\n\n\n\n
gbase> call p_test();\nQuery OK, 0 rows affected (Elapsed: 00:00:00.01)\n\ngbase> select @err_sign;\n+-----------+\n| @err_sign |\n+-----------+\n| 1 |\n+-----------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<\/span>\u83b7\u5f97\u62a5\u9519\u4fe1\u606f<\/span><\/h3>\n\n\n\n\u5982\u4e0b\u6837\u4f8b\uff0c\u83b7\u5f97\u4e86\u9519\u8bef\u7684SQLSTATE\uff0c\u62a5\u9519\u4fe1\u606f\u4ee5\u53ca\u62a5\u9519\u7684\u9519\u8bef\u53f7\u3002<\/p>\n\n\n\n
drop procedure if exists p_test;\ndelimiter \/\/\ncreate procedure p_test()\nbegin\n declare d_unknown_table condition for SQLSTATE '42S02';\n declare exit handler for d_unknown_table \n begin \n GET DIAGNOSTICS CONDITION 1\n @p1 = RETURNED_SQLSTATE, \n @p2 = MESSAGE_TEXT,\n @p3=gbase_errno;\n set @err_sign=1; \n \n end;\n select * from t_not_exists;\nend\/\/\ndelimiter ;\ncall p_test();\nselect @err_sign;\nselect @p1,@p2,@p3;<\/code><\/pre>\n\n\n\n\u4ece\u6267\u884c\u6548\u679c\u770b\uff0c\u5bf9\u6bd4\u76f4\u63a5\u6267\u884c\u7684\u62a5\u9519\u4fe1\u606f\uff0c\u62ff\u5230\u4e86\u6211\u4eec\u9884\u671f\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n
gbase> select * from t_not_exists;\nERROR 1146 (42S02): Table 'testdb.t_not_exists' doesn't exist\n\ngbase> call p_test();\nQuery OK, 0 rows affected (Elapsed: 00:00:00.00)\n\ngbase> select @err_sign;\n+-----------+\n| @err_sign |\n+-----------+\n| 1 |\n+-----------+\n1 row in set (Elapsed: 00:00:00.00)\n\ngbase> select @p1,@p2,@p3;\n+-------+-------------------------------------------+------+\n| @p1 | @p2 | @p3 |\n+-------+-------------------------------------------+------+\n| 42S02 | Table 'testdb.t_not_exists' doesn't exist | 1146 |\n+-------+-------------------------------------------+------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<\/span>\u6e38\u6807\u5230\u7ed3\u679c\u96c6\u672b\u5c3e\u7684NOT FOUND<\/span><\/h3>\n\n\n\n\u5982\u4e0b\u67e5\u8be22\u884c\u6570\u636e\u540e\uff0c\u4e0d\u518d\u6709\u65b0\u7684\u6570\u636e\uff0c\u6253\u5370\u8f93\u51fa\u3002<\/p>\n\n\n\n
drop procedure if exists p_test;\ndelimiter \/\/\ncreate procedure p_test()\nbegin\n declare done int DEFAULT 0;\n DECLARE a INT DEFAULT 0;\n DECLARE cur_1 CURSOR FOR SELECT * FROM t1 limit 2;\n DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;\n OPEN cur_1;\n REPEAT\n FETCH cur_1 INTO a;\n \n IF NOT done THEN\n select a;\n else\n select 'no more record';\n END IF;\n UNTIL done END REPEAT;\n\n CLOSE cur_1;\n\nend\/\/\ndelimiter ;\ncall p_test();<\/code><\/pre>\n\n\n\n\u6267\u884c\u7ed3\u679c\u5982\u4e0b<\/p>\n\n\n\n
gbase> call p_test();\n+-------+\n| a |\n+-------+\n| 17400 |\n+-------+\n1 row in set (Elapsed: 00:00:00.01)\n\n+-------+\n| a |\n+-------+\n| 31569 |\n+-------+\n1 row in set (Elapsed: 00:00:00.01)\n\n+----------------+\n| no more record |\n+----------------+\n| no more record |\n+----------------+\n1 row in set (Elapsed: 00:00:00.01)\n\nQuery OK, 0 rows affected (Elapsed: 00:00:00.01)\n\ngbase>\n<\/code><\/pre>\n\n\n\n<\/span>\u5d4c\u5957BEGIN END\u5185\u5c42declare\u7684\u5904\u7406<\/span><\/h3>\n\n\n\n\u5982\u4e0b\u4f7f\u7528\u4e86\u4e00\u4e2a\u5185\u5d4c\u7684BEGIN END\u5757\uff0c\u5e76\u58f0\u660e\u4e86\u81ea\u5df1\u7684\u5f02\u5e38\u5904\u7406\u3002<\/p>\n\n\n\n
drop procedure if exists p_test;\ndelimiter \/\/\ncreate procedure p_test()\nbegin\n declare done int DEFAULT 0;\n DECLARE a INT DEFAULT 0;\n select 'out begin';\n \n begin\n DECLARE cur_1 CURSOR FOR SELECT * FROM t1 limit 2;\n DECLARE Continue HANDLER FOR NOT FOUND SET done = TRUE;\n select 'Inner begin';\n OPEN cur_1;\n REPEAT\n FETCH cur_1 INTO a;\n \n IF NOT done THEN\n select a;\n else\n select 'no more record';\n END IF;\n \n \n UNTIL done END REPEAT;\n select 'Inner end';\n CLOSE cur_1;\n end;\n select 'out end';\nend\/\/\ndelimiter ;\ncall p_test();<\/code><\/pre>\n\n\n\n\u6267\u884c\u7ed3\u679c\u5982\u4e0b\uff1a\u5176\u4e2dcontinue\u4f1a\u7ee7\u7eed\u6267\u884c,\u8f93\u51fa\u4e86Inner end<\/p>\n\n\n\n
gbase> call p_test();\n+-----------+\n| out begin |\n+-----------+\n| out begin |\n+-----------+\n1 row in set (Elapsed: 00:00:00.02)\n\n+-------------+\n| Inner begin |\n+-------------+\n| Inner begin |\n+-------------+\n1 row in set (Elapsed: 00:00:00.02)\n\n+-------+\n| a |\n+-------+\n| 17400 |\n+-------+\n1 row in set (Elapsed: 00:00:00.03)\n\n+-------+\n| a |\n+-------+\n| 31569 |\n+-------+\n1 row in set (Elapsed: 00:00:00.03)\n\n+----------------+\n| no more record |\n+----------------+\n| no more record |\n+----------------+\n1 row in set (Elapsed: 00:00:00.04)\n\n+-----------+\n| Inner end |\n+-----------+\n| Inner end |\n+-----------+\n1 row in set (Elapsed: 00:00:00.04)\n\n+---------+\n| out end |\n+---------+\n| out end |\n+---------+\n1 row in set (Elapsed: 00:00:00.04)\n\nQuery OK, 0 rows affected (Elapsed: 00:00:00.04)\n\ngbase>\n\n<\/code><\/pre>\n\n\n\n<\/span>\u5185\u5c42\u5d4c\u5957exit handler\u7684\u6267\u884c\u7ed3\u679c<\/span><\/h3>\n\n\n\n\u5c06\u5982\u4e0a\u4f8b\u5b50\u7684continue\u6539\u6210exit\u3002<\/p>\n\n\n\n
drop procedure if exists p_test;\ndelimiter \/\/\ncreate procedure p_test()\nbegin\n declare done int DEFAULT 0;\n DECLARE a INT DEFAULT 0;\n select 'out begin';\n \n begin\n DECLARE cur_1 CURSOR FOR SELECT * FROM t1 limit 2;\n DECLARE Exit HANDLER FOR NOT FOUND SET done = TRUE;\n select 'Inner begin';\n OPEN cur_1;\n REPEAT\n FETCH cur_1 INTO a;\n \n IF NOT done THEN\n select a;\n else\n select 'no more record';\n END IF;\n \n \n UNTIL done END REPEAT;\n select 'Inner end';\n CLOSE cur_1;\n end;\n select 'out end';\nend\/\/\ndelimiter ;\ncall p_test();<\/code><\/pre>\n\n\n\n\u6267\u884c\u7ed3\u679c\uff0cExit\u9000\u51fa\u4e86\u5185\u5d4c\u7684BEGIN END,\u5728\u5916\u5c42\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n\n\n\n
gbase> call p_test();\n+-----------+\n| out begin |\n+-----------+\n| out begin |\n+-----------+\n1 row in set (Elapsed: 00:00:00.04)\n\n+-------------+\n| Inner begin |\n+-------------+\n| Inner begin |\n+-------------+\n1 row in set (Elapsed: 00:00:00.04)\n\n+-------+\n| a |\n+-------+\n| 17400 |\n+-------+\n1 row in set (Elapsed: 00:00:00.05)\n\n+-------+\n| a |\n+-------+\n| 31569 |\n+-------+\n1 row in set (Elapsed: 00:00:00.05)\n\n+---------+\n| out end |\n+---------+\n| out end |\n+---------+\n1 row in set (Elapsed: 00:00:00.05)\n\nQuery OK, 0 rows affected (Elapsed: 00:00:00.05)\n\n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u6570\u636e\u5e93\u652f\u6301\u5b58\u50a8\u8fc7\u7a0b\u7684\u5f02\u5e38\u5904\u7406\uff0c\u901a\u8fc7handler\u6355\u83b7\u5f02\u5e38\uff0c\u901a\u8fc7get DIAGNOSTIC\u83b7\u5f97\u5f02\u5e38\u8be6\u7ec6\u4fe1\u606f\uff0c\u5e76\u63d0\u4f9bcontinue\u548cexit\u4e24\u79cd\u6d41\u7a0b\u65b9\u6848\u3002\u672c\u6587\u4ecb\u7ecdGBase 8a\u5f02\u5e38\u5904\u7406\u6709\u5173\u8bed\u6cd5\u548c\u6837\u4f8b\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[92],"class_list":["post-2847","post","type-post","status-publish","format-standard","hentry","category-gbase8a","tag-92"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=2847"}],"version-history":[{"count":24,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2847\/revisions"}],"predecessor-version":[{"id":4959,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2847\/revisions\/4959"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=2847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=2847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=2847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}