ARRAY_TO_STRING() function TThe ARRAY_TO_STRING() function in PostgreSQL converts an array to a single string by concatenating its elements, using a specified delimiter. An optional parameter can be provided to replace null values in the array. Uses of the PostgreSQL ARRAY_TO_STRING() Functi...
1. CONVERT ( CONCAT( YEAR (xxx ), '' ), SIGNED ) 或者 CONVERT ( DATE_FORMAT( a.cysj , '%Y%m' ), SIGNED ) 替换:to_char(xxx,'yyyy')::int4 或者 to_number(to_char(birthday,'yyyyMM'),'999999') 2. format( ifnull( aa.zySsChoiceRate, 0 )/ zz.zySsChoiceRate * 100, 2 ) ...
array_to_string(array(SELECTfiledFROMtable),'/') array(SELECT filed FROM table )即把查询出来的filed字段转化成array数组 array_to_string(“数组”,”/”)即把数组转化为字符串,并用“/”连接(使用提供的分隔符连接数组元素)
}staticbyte[] StringToByteArray(stringhex) {intNumberChars = hex.Length /2;byte[] bytes =newbyte[NumberChars];using(varsr =newStringReader(hex)) {for(inti =0; i < NumberChars; i++) bytes[i]= Convert.ToByte(newstring(newchar[2] { (char)sr.Read(), (char)sr.Read() }),16); ...
PostgreSQL provides various array functions such asARRAY_APPEND(), ARRAY_TO_STRING(), ARRAY_REPLACE(), etc.STRING_TO_ARRAY()is one of them. Each array function serves a unique functionality. For instance, the STRING_TO_ARRAY() function converts a string into an array. ...
函数:convert_from(string bytea, src_encoding name) 说明:Convert string to the database encoding. The original encoding is specified by src_encoding. The string must be valid in this encoding. 转换字符串编码,自己要指定源编码,目标编码默认为数据库指定编码, ...
Interval TimeSpan String BigDecimal Not supported. As an alternative, utilize to_char() function to convert BigDecimal to String. String Related content For a list of data stores supported as sources and sinks by the copy activity, see supported data stores.Feed...
String functions BIT_LENGTH() OVERLAY() CONVERT(), CONVERT_FROM(), CONVERT_TO() ENCODE() FORMAT() QUOTE_NULLABLE() REGEXP_MATCHES() REGEXP_SPLIT_TO_ARRAY() REGEXP_SPLIT_TO_TABLE() System catalog information functions System information functions ...
You can use it to substitute NULL by a default value. NULLIF – return NULL if the first argument equals the second one. CAST – convert from one data type into another e.g., from a string into an integer, from a string into a date. Section 16. PostgreSQL Utilities ...
Fixed an issue in CONVERT function to make it work consistently with BINARY and VARBINARY types in Babelfish. Fixed the issue of inconsistent output from select query with FOR XML PATH clause. Fixed an issue to rethrow correct TSQL error code. Fixed behaviour of STRING_AGG() function for input...