SQL 2008 Conversion failed when converting from a character string to uniqueidentifier. Conversion failed when converting the nvarchar value 'xxxxxx' to data type int. Conversion failed when converting the varchar value to data type int. Conversion failed when converting the varchar value '],[' to...
Transact-SQL 语法约定 语法 syntaxsql SUBSTRING( expression, start, length ) 参数 expression 为character、binary、text、ntext 或者 image表达式。 start 指定返回字符的起始位置的整数或 bigint 表达式 。 (编号从 1 开始,意味着表达式中的第一个字符为 1)。 如果 start 小于 1,则返回的表达式的起始位置为表...
Transact-SQL 语法约定 语法 syntaxsql SUBSTRING( expression, start, length ) 参数 expression 为character、binary、text、ntext 或者 image表达式。 start 指定返回字符的起始位置的整数或 bigint 表达式 。 (编号从 1 开始,意味着表达式中的第一个字符为 1)。 如果 start 小于 1,则返回的表达式的起始位置为表...
有关可与此函数一起使用的有效 SQL Server 数据类型的详细信息,请参阅数据类型 (Transact-SQL)。 Transact-SQL 语法约定 语法 复制 SUBSTRING (value_expression ,start_expression ,length_expression ) 参数 value_expression 是character、binary、text、ntext 或 image表达式。 start_expression 指定返回字符的...
The SUBSTRING function returns part of either a character or binary string, or a text string, and takes the following parameters: A character or binary string, a column name, or a string-valued expression that includes a column name.
As you can see by this illustration, the LEFT function starts BEFORE the left-most character of a string and moves to the right, while the RIGHT function starts AFTER the right-most character and moves inwards to the left. SELECT RIGHT('HELLO WORLD', 3); SELECT LEFT('HELLO...
The string to be found before the returned substring The returned substring The string to be found after the returned substringThe parts are delimited by a double quotation mark (") and a specified escape character. For more information, see Similar...Escape Samples following....
Use SUBSTRING to Get Data After and Before a Character The following example will show data before and after a space for a character string. DECLARE@stringvarchar(50)='Hello world'SELECTSUBSTRING(@string,1,CHARINDEX(' ',@string))asfirstpart,SUBSTRING(@string,CHARINDEX(' ',@string),LEN(@stri...
names of each file path in the table. Note: The starting position is calculated by subtracting the position of the last backslash from the total string length and then adding 2 (one to account for the backslash itself and one to shift the position to the first character of the file name)...
“delimiter”, is the character that has multiple occurrences in the entire string “count” is the number of occurrences to get the string before or after from. If the count mentioned is positive, then it will extract from the left of the occurrence mentioned as a count. If the count men...