hive空值判斷：如果為null,取"",否則取其值
select if(column_test is null, "", column_test) as column_alias from table_name;
查詢hive報錯 SQL 錯誤 [40000] [42000]: COMPILE FAILED: Parse error: [Error 40000] line 1:8 cannot recogniz
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Hive 報錯 Error while compiling statement: FAILED: ParseException line 1:0 character '' not supported here (state=42000,code=40000)
SQL 錯誤 [30028] [42000]: COMPILE FAILED: Semantic error: [Error 30028] Line 1:7 PLSQL function is running in a non-driver environment, usually in SQL statement which doesn't allow nested SQL statement.
idea報錯。Error:Failed to load project configuration: cannot parse xml file E:\project\.idea\workspace.xml: Error on line 1: 前言中不允許有內容。
SQL Error: 1064, SQLState: 42000錯誤
MySQL報錯 SQL ERROR:1064 ,SQLState:42000
解決：sudo: parse error in /etc/sudoers near line 24 ...報錯
MySQL數據庫導入錯誤：ERROR 1064 (42000) 和 ERROR at line xx: Unknown command '\Z'.
Translating SQLException with SQL state '42000', error code '1064'錯誤
sql查詢語句報錯處理——ERROR: failed to find conversion function from unknown to text
鴻蒙運行報錯：Failure[INSTALL_PARSE_FAILED_USESDK_ERROR] Error while Deploying HAP