SQL中的單記錄函數(shù) 1.ASCII 返回與指定的字符對(duì)應(yīng)的十進(jìn)制數(shù) SQL> select ascii( A ) A,ascii( a ) a,ascii( 0 ) zero,ascii( ) space from dual A A ZERO SPACE --------- --------- --------- --------- 65 97 48 32 2.CHR 給出整數(shù),返回對(duì)應(yīng)的字符 SQL> select chr(54740) zhao,chr(65) chr65 from dual ZH C -- -

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