运行生成插入语句的 DB2 过程时的 SQLCODE 433 SQLSTATE 42806
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【中文标题】运行生成插入语句的 DB2 过程时的 SQLCODE 433 SQLSTATE 42806【英文标题】：SQLCODE 433 SQLSTATE 42806 when running a DB2 procedure that generates insert statements 【发布时间】：2015-10-23 20:17:51 【问题描述】：我正在尝试整合一个脚本，该脚本将通过给定模式运行并将所有表数据作为插入语句输出。
我已经在几个表上测试了脚本并成功完成，因此开始在完整架构上运行它并收到 SQLCODE 433 SQLSTATE 42806 错误。当变量不兼容时，SQLSTATE 42806 错误看起来像它，但是当我仅使用 SQL 中指定的表触发过程时，它失败的表看起来成功完成。
该表由以下数据类型组成：
BIGINT NOT NULL,
INTEGER NOT NULL,
SMALLINT,
TIMESTAMP,
VARCHAR (255),
VARCHAR (255),
DATE,
DATE,
VARCHAR (1) DEFAULT 'Y',
VARCHAR (255) NOT NULL,
DATE,
BIGINT
我正在使用 UTL_FILE 将插入语句写入输出文件，但不确定我是否达到了我可以写出的限制，但从我正在在线阅读的文档中看不到任何限制。
程序的代码是：
CREATE OR REPLACE PROCEDURE CREATE_INSERTS
(
IN in_schema VARCHAR(50),
IN in_output_dir VARCHAR(100),
IN in_output_file VARCHAR(100),
OUT out_message VARCHAR(100)
)
LANGUAGE SQL
BEGIN
DECLARE SQLCODE INT DEFAULT 0;
DECLARE SQLSTATE CHAR(5) DEFAULT '00000';
DECLARE v_table_name VARCHAR(128);
DECLARE c_datatype CONDITION FOR SQLSTATE '20000';
DECLARE c_no_output_dir CONDITION FOR SQLSTATE '99901';
DECLARE c_no_output_file CONDITION FOR SQLSTATE '99902';
DECLARE c_no_output_dir_file CONDITION FOR SQLSTATE '99903';
DECLARE c_noselect_cols CONDITION FOR SQLSTATE '99904';
DECLARE v_filehandle UTL_FILE.FILE_TYPE;
DECLARE isOpen BOOLEAN;
DECLARE v_dirAlias VARCHAR(50) DEFAULT 'mydir';
DECLARE v_filename VARCHAR(20) DEFAULT 'myfile.sql';
DECLARE v_datSQL VARCHAR(1000);
DECLARE v_Column_Name VARCHAR(128);
DECLARE v_Data_Type VARCHAR(18);
DECLARE v_FirstTimeFlg INTEGER DEFAULT 1;
DECLARE v_dynSQL VARCHAR(10000);
DECLARE v_colstatement VARCHAR(10000) DEFAULT ' ';
DECLARE v_datstatement VARCHAR(10000) DEFAULT ' ';
DECLARE v_data VARCHAR(10000);
DECLARE v_start_quotes VARCHAR(20) DEFAULT '''''''''||';
DECLARE v_end_quotes VARCHAR(20) DEFAULT '||''''''''';
DECLARE v_cur_statement STATEMENT;
DECLARE v_col_statement STATEMENT;
DECLARE v_table_statement STATEMENT;
DECLARE c_table CURSOR FOR v_table_statement;
DECLARE c_column CURSOR FOR v_col_statement;
DECLARE c_data CURSOR FOR v_cur_statement;
-- Catch errors
DECLARE EXIT HANDLER FOR c_no_output_dir_file
SET out_message = 'There was no output directory or file specified';
DECLARE EXIT HANDLER FOR c_no_output_dir
SET out_message = 'There was no output directory specified';
DECLARE EXIT HANDLER FOR c_no_output_file
SET out_message = 'There was no output file specified for the insert statements';
DECLARE EXIT HANDLER FOR c_noselect_cols
SET out_message = 'There was no columns found in table: ' || v_table_name;
DECLARE EXIT HANDLER FOR SQLEXCEPTION
SET out_message = 'Error, SQLSTATE : " '|| SQLSTATE ||'",SQLCODE=' || CHAR(SQLCODE);
-- Check if file and location has been provided before proceeding...
IF in_output_dir IS NULL AND in_output_file IS NULL THEN
SIGNAL c_no_output_dir_file;
ELSEIF in_output_dir IS NULL THEN
SIGNAL c_no_output_dir;
ELSEIF in_output_file IS NULL THEN
SIGNAL c_no_output_file;
END IF;
-- Open file
CALL UTL_DIR.CREATE_OR_REPLACE_DIRECTORY(v_dirAlias, in_output_dir);
SET v_filehandle = UTL_FILE.FOPEN(v_dirAlias, in_output_file, 'w');
SET isOpen = UTL_FILE.IS_OPEN(v_filehandle);
IF isOpen != TRUE THEN
RETURN -1;
END IF;
SET v_datSQL = 'SELECT TABLE.NAME'
||' FROM SYSIBM.SYSTABLES TABLE'
||' WHERE UPPER(TABLE.CREATOR) = UPPER(''' || in_schema || ''')'
||' AND TABLE.TYPE = ''T''';
PREPARE v_table_statement from v_datSQL;
OPEN c_table;
FETCH c_table INTO v_table_name;
WHILE (SQLSTATE = '00000') DO
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #########################');
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #');
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- # INSERT ' || v_table_name);
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #');
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #########################');
SET v_datSQL = 'SELECT colname, typename FROM '
||' syscat.columns'
||' WHERE UPPER(TabName) = UPPER('''||v_table_name||''')'
||' AND UPPER(TabSchema) = UPPER('''||in_schema||''')'
||' ORDER BY colno';
PREPARE v_col_statement from v_datSQL;
OPEN c_column;
FETCH c_column INTO v_Column_Name, v_Data_Type;
WHILE (SQLSTATE = '00000') DO
IF v_FirstTimeFlg = 1 THEN
SET v_colstatement = v_column_name ;
SET v_FirstTimeFlg = 2;
ELSE
SET v_colstatement = v_colstatement || ' ,' || v_column_name ;
END IF;
FETCH c_column INTO v_Column_Name, v_Data_Type;
END while;
IF v_FirstTimeFlg = 1 THEN
SIGNAL c_noselect_cols;
END IF;
CLOSE c_column;
SET v_FirstTimeFlg = 1;
OPEN c_column;
FETCH c_column INTO v_Column_Name, v_Data_Type;
WHILE (SQLSTATE = '00000') DO
IF v_Data_Type NOT IN ('BIGINT', 'INTEGER', 'DECIMAL', 'SMALLINT', 'CHARACTER','VARCHAR', 'BLOB', 'CLOB', 'DATE','TIME','TIMESTAMP') THEN
SIGNAL c_datatype;
END IF;
IF v_Data_Type NOT IN ('BLOB', 'CLOB') THEN
IF v_FirstTimeFlg = 1 THEN
SET v_datstatement = v_datstatement ||
CASE v_Data_Type
WHEN 'BIGINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'INTEGER' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'DECIMAL' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'SMALLINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'CHARACTER' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'VARCHAR' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'BLOB' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'CLOB' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'DATE' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIME' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIMESTAMP' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
ELSE CHR(9) -- this will never happen
END;
SET v_FirstTimeFlg = 2;
ELSE
SET v_datstatement = v_datstatement || ' || '' , '' || ' ||
CASE v_Data_Type
WHEN 'BIGINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'INTEGER' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'DECIMAL' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'SMALLINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'CHARACTER' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'VARCHAR' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'BLOB' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'CLOB' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'DATE' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIME' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIMESTAMP' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
ELSE CHR(9) -- this will never happen
END;
END IF;
END IF;
FETCH c_column INTO v_Column_Name, v_Data_Type;
END while;
CLOSE c_column;
SET v_dynSQL = 'SELECT '||TRIM(v_datstatement)|| ' FROM ' || UPPER(TRIM(in_schema)) || '.' || UPPER(TRIM(v_table_name)) || ' ';
PREPARE v_cur_statement from v_dynSQL;
OPEN c_data;
FETCH c_data INTO v_data;
WHILE (SQLSTATE = '00000') DO
CALL UTL_FILE.PUT_LINE(v_filehandle,'INSERT INTO '|| UPPER(v_table_name) || ' ( '||v_colstatement|| ') VALUES( ' || v_data ||');');
FETCH c_data INTO v_data;
END while;
SET v_datstatement = '';
SET v_dynSQL = '';
CLOSE c_data;
CALL UTL_FILE.NEW_LINE(v_filehandle, 2);
FETCH c_table INTO v_table_name;
END while;
CLOSE c_table;
CALL UTL_FILE.FCLOSE(v_filehandle);
SET out_message = 'Processing Success';
END
感谢您的帮助
【问题讨论】：
db2 提供了这个实用程序——它被称为 db2look。为什么要重新发明它？ 你能发布确切的错误信息吗？ SQL0433N 是“值太长”，它还应该提供有关哪个值的详细信息 我认为 db2look 只输出 DDL 来创建表和视图等，并没有输出数据。用 db2look 执行此操作的语法是什么？ 【参考方案1】：我发现这是 FOPEN 的问题，因为该行对于该功能来说太大了。为了解决这个问题，我使用了重载的 FOPEN 函数并使用了 32767 的最大大小，它将 INSERT 语句正确地生成到一个文件中。
最终代码如下：
CREATE OR REPLACE PROCEDURE CREATE_INSERTS
(
IN in_schema VARCHAR(50),
IN in_output_dir VARCHAR(100),
IN in_output_file VARCHAR(100),
OUT out_message VARCHAR(100)
)
LANGUAGE SQL
BEGIN
DECLARE SQLCODE INT DEFAULT 0;
DECLARE SQLSTATE CHAR(5) DEFAULT '00000';
DECLARE v_table_name VARCHAR(128);
DECLARE c_datatype CONDITION FOR SQLSTATE '20000';
DECLARE c_no_output_dir CONDITION FOR SQLSTATE '99901';
DECLARE c_no_output_file CONDITION FOR SQLSTATE '99902';
DECLARE c_no_output_dir_file CONDITION FOR SQLSTATE '99903';
DECLARE c_noselect_cols CONDITION FOR SQLSTATE '99904';
DECLARE v_filehandle UTL_FILE.FILE_TYPE;
DECLARE isOpen BOOLEAN;
DECLARE v_dirAlias VARCHAR(50) DEFAULT 'mydir';
DECLARE v_filename VARCHAR(20) DEFAULT 'myfile.sql';
DECLARE v_datSQL VARCHAR(1000);
DECLARE v_Column_Name VARCHAR(128);
DECLARE v_Data_Type VARCHAR(18);
DECLARE v_FirstTimeFlg INTEGER DEFAULT 1;
DECLARE v_dynSQL VARCHAR(10000);
DECLARE v_colstatement VARCHAR(10000) DEFAULT ' ';
DECLARE v_datstatement VARCHAR(10000) DEFAULT ' ';
DECLARE v_data VARCHAR(10000);
DECLARE v_start_quotes VARCHAR(20) DEFAULT '''''''''||';
DECLARE v_end_quotes VARCHAR(20) DEFAULT '||''''''''';
DECLARE v_cur_statement STATEMENT;
DECLARE v_col_statement STATEMENT;
DECLARE v_table_statement STATEMENT;
DECLARE c_table CURSOR FOR v_table_statement;
DECLARE c_column CURSOR FOR v_col_statement;
DECLARE c_data CURSOR FOR v_cur_statement;
-- Catch errors
DECLARE EXIT HANDLER FOR c_no_output_dir_file
SET out_message = 'There was no output directory or file specified';
DECLARE EXIT HANDLER FOR c_no_output_dir
SET out_message = 'There was no output directory specified';
DECLARE EXIT HANDLER FOR c_no_output_file
SET out_message = 'There was no output file specified for the insert statements';
DECLARE EXIT HANDLER FOR c_noselect_cols
SET out_message = 'There was no columns found in table: ' || v_table_name;
DECLARE EXIT HANDLER FOR SQLEXCEPTION
SET out_message = 'Error, SQLSTATE : " '|| SQLSTATE ||'",SQLCODE=' || CHAR(SQLCODE);
-- Check if file and location has been provided before proceeding...
IF in_output_dir IS NULL AND in_output_file IS NULL THEN
SIGNAL c_no_output_dir_file;
ELSEIF in_output_dir IS NULL THEN
SIGNAL c_no_output_dir;
ELSEIF in_output_file IS NULL THEN
SIGNAL c_no_output_file;
END IF;
-- Open file
CALL UTL_DIR.CREATE_OR_REPLACE_DIRECTORY(v_dirAlias, in_output_dir);
SET v_filehandle = UTL_FILE.FOPEN(v_dirAlias, in_output_file, 'w', 32767);
SET isOpen = UTL_FILE.IS_OPEN(v_filehandle);
IF isOpen != TRUE THEN
RETURN -1;
END IF;
SET v_datSQL = 'SELECT TABLE.NAME'
||' FROM SYSIBM.SYSTABLES TABLE'
||' WHERE UPPER(TABLE.CREATOR) = UPPER(''' || in_schema || ''')'
||' AND TABLE.TYPE = ''T'''
||' ORDER BY TABLE.NAME ASC'
;
PREPARE v_table_statement from v_datSQL;
OPEN c_table;
FETCH c_table INTO v_table_name;
WHILE (SQLSTATE = '00000') DO
CALL DBMS_OUTPUT.PUT_LINE('Processing table: ' || v_table_name);
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #########################');
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #');
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- # INSERT ' || v_table_name);
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #');
CALL UTL_FILE.PUT_LINE(v_filehandle, '-- #########################');
SET v_FirstTimeFlg = 1;
SET v_datSQL = 'SELECT colname, typename FROM '
||' syscat.columns'
||' WHERE UPPER(TabName) = UPPER('''||v_table_name||''')'
||' AND UPPER(TabSchema) = UPPER('''||in_schema||''')'
||' ORDER BY colno';
PREPARE v_col_statement from v_datSQL;
OPEN c_column;
FETCH c_column INTO v_Column_Name, v_Data_Type;
WHILE (SQLSTATE = '00000') DO
IF v_FirstTimeFlg = 1 THEN
SET v_colstatement = v_column_name ;
SET v_FirstTimeFlg = 2;
ELSE
SET v_colstatement = v_colstatement || ' ,' || v_column_name ;
END IF;
FETCH c_column INTO v_Column_Name, v_Data_Type;
END while;
IF v_FirstTimeFlg = 1 THEN
SIGNAL c_noselect_cols;
END IF;
CLOSE c_column;
SET v_FirstTimeFlg = 1;
OPEN c_column;
FETCH c_column INTO v_Column_Name, v_Data_Type;
WHILE (SQLSTATE = '00000') DO
IF v_Data_Type NOT IN ('BIGINT', 'INTEGER', 'DOUBLE', 'DECIMAL', 'SMALLINT', 'CHARACTER', 'LONG VARCHAR', 'VARCHAR', 'BLOB', 'CLOB', 'DATE','TIME','TIMESTAMP') THEN
SIGNAL c_datatype;
END IF;
IF v_FirstTimeFlg = 1 THEN
SET v_datstatement = v_datstatement ||
CASE v_Data_Type
WHEN 'BIGINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'INTEGER' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'DOUBLE' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'DECIMAL' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'SMALLINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'CHARACTER' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'LONG VARCHAR' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'VARCHAR' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'BLOB' THEN 'coalesce(' ||v_start_quotes || 'CAST (' || v_Column_Name || ' AS VARCHAR(32000))' || v_end_quotes ||',''NULL'')'
WHEN 'CLOB' THEN 'coalesce(' ||v_start_quotes || 'CAST (' || v_Column_Name || ' AS VARCHAR(32000))' || v_end_quotes ||',''NULL'')'
WHEN 'DATE' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIME' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIMESTAMP' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
ELSE CHR(9) -- this will never happen
END;
SET v_FirstTimeFlg = 2;
ELSE
SET v_datstatement = v_datstatement || ' || '' , '' || ' ||
CASE v_Data_Type
WHEN 'BIGINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'INTEGER' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'DOUBLE' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'DECIMAL' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'SMALLINT' THEN 'coalesce(RTRIM(CHAR('||v_Column_Name||')),''NULL'')'
WHEN 'CHARACTER' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'LONG VARCHAR' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'VARCHAR' THEN 'coalesce(' ||v_start_quotes ||v_Column_Name|| v_end_quotes ||',''NULL'')'
WHEN 'BLOB' THEN 'coalesce(' ||v_start_quotes || 'CAST (' || v_Column_Name || ' AS VARCHAR(32000))' || v_end_quotes ||',''NULL'')'
WHEN 'CLOB' THEN 'coalesce(' ||v_start_quotes || 'CAST (' || v_Column_Name || ' AS VARCHAR(32000))' || v_end_quotes ||',''NULL'')'
WHEN 'DATE' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIME' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')'
WHEN 'TIMESTAMP' THEN 'coalesce(' ||v_start_quotes || 'RTRIM(CHAR('||v_Column_Name ||'))'|| v_end_quotes||',''NULL'')' ELSE CHR(9) -- this will never happen
END;
END IF;
FETCH c_column INTO v_Column_Name, v_Data_Type;
END while;
CLOSE c_column;
SET v_dynSQL = 'SELECT '||TRIM(v_datstatement)|| ' FROM ' || UPPER(TRIM(in_schema)) || '.' || UPPER(TRIM(v_table_name)) || ' ';
PREPARE v_cur_statement from v_dynSQL;
OPEN c_data;
FETCH c_data INTO v_data;
WHILE (SQLSTATE = '00000') DO
CALL UTL_FILE.PUT_LINE(v_filehandle,'INSERT INTO '|| UPPER(v_table_name) || ' ( '||v_colstatement|| ') VALUES( ' || v_data ||');');
FETCH c_data INTO v_data;
END while;
SET v_colstatement = '';
SET v_datstatement = '';
SET v_dynSQL = '';
CLOSE c_data;
CALL UTL_FILE.NEW_LINE(v_filehandle, 2);
FETCH c_table INTO v_table_name;
END while;
CLOSE c_table;
CALL UTL_FILE.FCLOSE(v_filehandle);
SET out_message = 'Processing Success';
END
【讨论】：
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