PSQLException: ERROR: failed to find conversion function from unknown to char
sql語句報錯 PSQLException: ERROR: failed to find conversion function from unknown to char ； 原因 使用union的時候，查詢的常量字段必須 使用類型型轉化函數，比如::int、::text
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相關文章
- 1. invalid conversion from 'const char*' to 'char*'
- 2. deprecated conversion from string constant to char
- 3. warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
- 4. 【ZYNQ_LINUX 】使用問題 invalid conversion from 'unsigned int' to 'unsigned char*' [-fpermissive]
- 5. 錯誤: Failed to install 'unknown package' from GitHub: schannel: failed to receive handshake, SSL/TL
- 6. Android: Conversion to Dalvik format failed wit...
- 7. 解決C++警告:warning: conversion from string literal to 'char *' is deprecated
- 8. warning：deprecated conversion from string constant to 'char *' 解決方案
- 9. Dev C++中string和char的一些問題及deprecated conversion from string constant to ‘char*’
- 10. Binary to Text (ASCII) Conversion