sql异常（代码中）

1.未找到要求的from关键字

UPDATE CF_ZJ_CDHPTZ A SET F_DJJE = 0,F_SYJE = ((SELECT F_DJJE FROM CF_ZJ_CDHPTZ B WHERE A.F_PJH = B.F_PJH)) WHERE F_PJH IN('3050005327817669')

2.未找到要求的from关键字

UPDATE CF_ZJ_CDHPTZ A SET F_DJJE = 0,F_SYJE=(SELECT F_DJJE FROM CF_ZJ_CDHPTZ B WHERE B.F_PJH = '') WHERE F_PJH IN('3050005327817669')

3.update & '

select chr(38) from dual

select (ascii('&')) from dual ;