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- character data type operation 字符数据类型操作
- A SQL variable of character data type can hold a string. 字符数据类型的SQL变量可以保存字符串。
- Therefore, for character data files, SQLCHAR is the only data type that appears in a format file. 因此,对于字符数据文件,SQLCHAR是唯一出现在格式化文件中的数据类型。
- This indicates the database in which the character set is located if the column is character data or text data type. 此参数指示列是字符数据或text数据类型时,字符集所在的数据库。
- Returns the unique name for the character set if this column is character data or text data type. 如果此列是字符数据或text数据类型,则返回字符集的唯一名称。
- Returns the unique name for the collation if the column is character data or text data type. 如果列是字符数据或text数据类型,则为排序规则返回唯一的名称。
- Returns the unique name for the sort order if the column is character data or text data type. 如果该列是字符数据或text数据类型,则返回排序顺序的唯一名称。
- Set the length of columns with character data types. 设置字符数据类型的列的长度。
- When character expressions are converted to a character data type of a different size, values that are too long for the new data type are truncated. 如果将字符表达式转换为不同大小的字符数据类型,则对于新数据类型而言过长的值将被截断。
- Numeric data is assigned a numeric data type, string data is assigned a character data type, and dates are assigned a date data type. 为数值数据分配数值数据类型,为字符串数据分配字符数据类型,为日期分配日期数据类型。
- Since a char can store small positive numbers and since the character data type is a sub-range of the unsigned integer data type, C! 由于一个字元可以储存小正数而且由于字元资料型别是无号整数资料型别的子范围,C!
- If a field in the first record contains text, that field is assigned the character data type, and any numbers contained in the field in other rows become character strings. 如果第一条记录的字段中包含文本,就会将该字段指定为字符数据类型,这样其他行中对应于该字段的任何数字都将变为字符串。
- CURRENT USER can be used as a default value in columns with character data types. CURRENT USER可在具有字符数据类型的列中用作缺省值。
- Oracle has the concept of specifying a length and then specifying the actual storage size for some character data types. 对于某些字符数据类型,Oracle的观念是先指定长度,然后指定实际存储大小。
- A language construct that describes a data type by means of a model character string literal. 编程语言中,利用模型字符串的数值文字描述数据类型的一种语言成分。
- A structured collection of data objects, forming a data type. 多个数据对象的结构化汇集,以形成一种数据类型。
- Store them as character data for earlier dates. 对于之前的日期,将存储为字符数据。
- CN Composite Number and Name data type. 代码与文字合成资料型态。
- For earlier dates, store dates as character data. 对于早期日期,可将日期存储为字符数据。
- integer data type operation 整数数据类型操作