请教关于ExtractValue的问题,请问第一个参数,就是xml的大小有限制吗,我导入了一个4.2MB 的xml文件,系统提示You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NULL' at line 1。如果换小一点的文件就没有问题,请问有人能帮忙解决这个问题吗,谢谢
调试欢乐多
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BEGIN
DECLARE spxml LONGTEXT;
DECLARE spxmlq TEXT;
DECLARE nrows INT;
DECLARE rownum INT;
DECLARE ncols INT;
DECLARE colnum INT DEFAULT 1;
DECLARE ins_list TEXT DEFAULT '';
DECLARE val_list TEXT DEFAULT '';
DECLARE descrizione VARCHAR(255);
DECLARE tmp VARCHAR(255);
DECLARE tmptarga VARCHAR(255);
DECLARE tmpdec VARCHAR(255);
SET spxml=LOAD_FILE('/Users/w.martin/export_stock_usato.xml');
SET tmptarga = ExtractValue(spxml,'/Stock_usato/veicolo_usato[1]/targa');
SET tmptarga =CONCAT('"',tmptarga ,'"');
SET @ins_text = CONCAT('INSERT INTO testtarga (targa) VALUES (', tmptarga ,')');
PREPARE stmt FROM @ins_text;
EXECUTE stmt;
END