| 操作符 | 说明 | 示例 |
|---|---|---|
| IF(Cmp_Expr, TRUE_Val, FALSE_Val) | If Cmp_Expr equals TRUE returns TRUE_Val, else returns FALSE_Val | IF(DAY(date_entered) > 15, '1st', '2nd') |
| IFNULL(Cmp_Expr, NULL_Val) | If Cmp_Expr equals NULL returns NULL_Val, else returns Cmp_Expr | IFNULL(type, 'Empty Value') |
| NULLIF(Cmp1, Cmp2) | If (Cmp1 == Cmp2) returns NULL, else returns Cmp1 | NULLIF(date_entered, date_modified) |
| 操作符 | 说明 | 示例 |
|---|---|---|
| + | Addition operator | amount + 2 |
| - | Minus operator | amount - 2 |
| * | Multiplication operator | amount * 2 |
| / | Division operator | amount / 2 |
| % | Modulo operator | amount % 2 |
| DIV | Integer division | amount DIV 2 |
| -(columnName) | Unary minus. It changes the sign of the argument. | -(amount) |
| 函数 | 说明 | 示例 |
|---|---|---|
| AVG(columnName) | Returns the average value | AVG(amount) |
| COUNT(columnName) | Returns the number of rows | COUNT(id) |
| FIRST(columnName) | Returns the first value | FIRST(name) |
| LAST(columnName) | Returns the last value | LAST(name) |
| MAX(columnName) | Returns the largest value | MAX(date_entered) |
| MIN(columnName) | Returns the smallest value | MIN(date_entered) |
| SUM(columnName) | Returns the sum | SUM(amount) |
| 函数 | 说明 | 示例 |
|---|---|---|
| NOW() | Returns the current system date and time | NOW() |
| CURDATE() | Returns the current date | CURDATE() |
| CURTIME() | Returns the current time | CURTIME() |
| DATE(dateString) | Extracts the date part of a datetime expression | DATE('2010-01-01 18:00:00') |
| EXTRACT(unit* FROM dateA) | Returns a single unit part of a datetime | EXTRACT(MONTH FROM date_entered) |
| DATE_ADD(dateA, INTERVAL time unit*) | Adds a specified time interval to a date | DATE_ADD(date_entered, INTERVAL 4 WEEK) |
| DATE_SUB(dateA, INTERVAL time unit*) | Subtracts a specified time interval from a date | DATE_SUB(date_entered, INTERVAL 2 DAY) |
| DATEDIFF(dateA, dateB) | Returns the number of days between two dates | DATEDIFF(date_entered, '2010-01-01') |
| DATE_FORMAT(dateA, format*) | Displays datetime data in different formats | DATE_FORMAT(date_entered, '%d-%m-%Y') |
| 函数 | 说明 | 示例 |
|---|---|---|
| BIN(intA) | Returns binary value for IntA | BIN(9) |
| CHAR(numA,... [USING charset]) | Returns the character value of the given integer values | CHAR(0xC3BC USING utf8) |
| CONV(numA, fromBase, toBase) | Converts numbers between different bases | CONV(8, 10, 2) |
| ELT(intA, str1, str2, str3,...) | Returns str1 if intA=1 and str2 if intA=2 and so on | SELECT(2, 'a', 'b', 'c') |
| HEX(intA) | Returns hexadecimal representation for intA | HEX(amount) |
| OCT(intA) | Returns octal representation for intA | OCT(15) |
| ROUND(numA, decimals) | Rounds a numeric field to the number of decimals specified | ROUND(3.14159, 4) |
| FORMAT(numA, decimals) | Formats the number according to the template '#,###.##', Rounding decimal | FORMAT(amount, 2) |
| 函数 | 说明 | 示例 |
|---|---|---|
| BIT_LENGTH(strA) | Returns the String length in bits | BIT_LENGTH('a') |
| CHAR_LENGTH(strA) | Returns the length of a text field | CHAR_LENGTH(name) |
| CHARACTER_LENGTH(strA) | Returns the length of a text field | CHARACTER_LENGTH('abcdefg') |
| LENGTH/OCTET_LENGTH(strA) | Returns the length of a text field in bytes | LENGTH('AlineaSol') |
| CHARINDEX(strA, strB [,start]) | Returns the starting position of a character strA in StringB | CHARINDEX('Sol', 'AlineaSol') |
| ASCII(strA) | Returns the ASCII code value of a keyboard char button | ASCII('A') |
| UCASE/UPPER(strA) | Converts a field to upper case | UCASE('alineasol') |
| LCASE/LOWER(strA) | Converts a field to lower case | LCASE(name) |
| MID(strA, start[, length]) | Extract characters from a text field | MID(description, 5, 10) |
| CONCAT(strA, strB,....) | Returns concatenated Strings | CONCAT('Alinea', 'Sol') |
| 函数 | 说明 | 示例 |
|---|---|---|
| CONCAT_WS(separator, strA, strB,....) | Returns concatenated Strings with separator char | CONCAT_WS(' ', name, surName) |
| SPACE(int) | Returns spaces in your SQL query | SPACE(2) |
| REPLACE(strA, strB, strC) | Replaces all occurrences of the strB in the strA with strC | REPLACE(description, 'a', 'z') |
| INSERT(strA, pos, len, newString) | Replaces into strA, newStr String | INSERT(name, 0, 1, 'Asol') |
| INSTR(strA,subStr) | Return the position of first occurrence of subStr in strA | INSTR(description, 'AlineaSol') |
| LEFT(strA, int) | Returns left part of strA with int number of characters | LEFT(name, 5) |
| RIGHT(strA, int) | Returns right part of strA with int number of characters | RIGHT('AlineaSol', 3) |
| SUBSTRING(strA, startIndex, length) | Returns part of a strA | SUBSTRING(name, 0, 10) |
| REVERSE(strA) | Returns reverse of strA | REVERSE(name) |
| LTRIM(strA) | Returns strA after removing leading blanks on Left side | LTRIM(' Z') |
| RTRIM(strA) | Returns strA after removing leading blanks on Right side | RTRIM('A ') |
| DateTime Units | DateTime Format |
|---|---|
| MICROSECOND SECOND MINUTE HOUR DAY WEEK MONTH QUARTER YEAR SECOND_MICROSECOND MINUTE_MICROSECOND MINUTE_SECOND HOUR_MICROSECOND HOUR_SECOND HOUR_MINUTE DAY_MICROSECOND DAY_SECOND DAY_MINUTE DAY_HOUR YEAR_MONTH |
%a Abbreviated weekday name, %b Abbreviated month name %c Month, numeric, %D Day of month with English suffix %d Day of month, numeric (00-31), %e Day of month, numeric (0-31) %f Microseconds, %H Hour (00-23) %h Hour (01-12), %I Hour (01-12) %i Minutes, numeric (00-59), %j Day of year (001-366) %k Hour (0-23), %l Hour (1-12) %M Month name, %m Month, numeric (00-12) %p AM or PM, %r Time, 12-hour (hh:mm:ss AM or PM) %S Seconds (00-59), %s Seconds (00-59) %T Time, 24-hour (hh:mm:ss) %U Week (00-53) where Sunday is the first day of week %u Week (00-53) where Monday is the first day of week %V Week (01-53) where Sunday is the first day of week, used with %X %v Week (01-53) where Monday is the first day of week, used with %x %W Weekday name, %w Day of the week (0=Sunday, 6=Saturday) %X Year of the week where Sunday is the first day of week, four digits, used with %V %x Year of the week where Monday is the first day of week, four digits, used with %v %Y Year, four digits, %y Year, two digits |
| 变量类型 | 说明 | 示例 |
|---|---|---|
| ${this} | References the value of the current field | ${this} |
| ${bean->Field} | References a field of the current report module | ${bean->name} |
| ${bean_cstm->Field_c} | References a custom field of the current report module | ${bean_cstm->account_type_c} |
| ${ModName->LinkField->RelatedField} | References a related field value | ${Accounts->account_id_c->name} |
| ${ModName_Cstm->LinkField->RelatedField_c} | References a related custom field value | ${Accounts_Cstm->account_id_c->account_type_c} |
| 参考源 | 参考代码 | 现场别名 |
|---|