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SELECT * FROM `help_topic` ORDER BY `name` DESC 
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完整内容 help_topic_id name 递减 递增 1 help_category_id description example url
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 161
161 ~ 19 Syntax:
~

Invert all bits.

URL: https://mariadb....
MariaDB> SELECT 5 & ~1;
        -> 4

https://mariadb.com/kb/en/3489/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 141
141 || 15 Syntax:
OR, ||

Logical OR. When both operands are...
MariaDB> SELECT 1 || 1;
        -> 1
MariaDB> SELE...
https://mariadb.com/kb/en/or/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 410
410 | 19 Syntax:
|

Bitwise OR:

URL: https://mariadb.com/k...
MariaDB> SELECT 29 | 15;
        -> 31

https://mariadb.com/kb/en/bitwise-or/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 29
29 ^ 19 Syntax:
^

Bitwise XOR:

URL: https://mariadb.com/...
MariaDB> SELECT 1 ^ 1;
        -> 0
MariaDB> SELEC...
https://mariadb.com/kb/en/bitwise-xor/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 204
204 YEARWEEK 31 Syntax:
YEARWEEK(date), YEARWEEK(date,mode)

Retur...
MariaDB> SELECT YEARWEEK('1987-01-01');
        ->...
https://mariadb.com/kb/en/yearweek/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 287
287 YEAR DATA TYPE 22 YEAR[(2|4)]

A year in two-digit or four-digit for...
https://mariadb.com/kb/en/year-data-type/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 364
364 YEAR 31 Syntax:
YEAR(date)

Returns the year for date, in ...
MariaDB> SELECT YEAR('1987-01-01');
        -> 198...
https://mariadb.com/kb/en/year/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 400
400 Y 11 Y(p)

Returns the Y-coordinate value for the Point...
MariaDB> SELECT Y(POINT(56.7, 53.34));
+----------...
https://mariadb.com/kb/en/y/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 197
197 XOR 15 Syntax:
XOR

Logical XOR. Returns NULL if either o...
MariaDB> SELECT 1 XOR 1;
        -> 0
MariaDB> SEL...
https://mariadb.com/kb/en/xor/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 317
317 X 11 X(p)

Returns the X-coordinate value for the Point...
MariaDB> SELECT X(POINT(56.7, 53.34));
+----------...
https://mariadb.com/kb/en/x/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 247
247 WKT DEFINITION 3 The Well-Known Text (WKT) representation of Geomet... https://mariadb.com/kb/en/wkt-definition/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 31
31 WITHIN 30 Within(g1,g2)

Returns 1 or 0 to indicate whether ...
https://mariadb.com/kb/en/within/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 496
496 WHILE 23 Syntax:
[begin_label:] WHILE search_condition DO
...
CREATE PROCEDURE dowhile()
BEGIN
  DECLARE v1 INT ...
https://mariadb.com/kb/en/while/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 267
267 WEEKOFYEAR 31 Syntax:
WEEKOFYEAR(date)

Returns the calendar wee...
MariaDB> SELECT WEEKOFYEAR('2008-02-20');
        ...
https://mariadb.com/kb/en/weekofyear/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 371
371 WEEKDAY 31 Syntax:
WEEKDAY(date)

Returns the weekday index f...
MariaDB> SELECT WEEKDAY('2008-02-03 22:23:00');
  ...
https://mariadb.com/kb/en/weekday/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 32
32 WEEK 31 Syntax:
WEEK(date[,mode])

This function returns t...
MariaDB> SELECT WEEK('2008-02-20');
        -> 7
M...
https://mariadb.com/kb/en/week/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 505
505 VERSION 17 Syntax:
VERSION()

Returns a string that indicates...
MariaDB> SELECT VERSION();
        -> '5.5.29-stan...
https://mariadb.com/kb/en/version/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 11
11 VAR_SAMP 16 Syntax:
VAR_SAMP(expr)

Returns the sample varianc...
https://mariadb.com/kb/en/var_samp/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 157
157 VAR_POP 16 Syntax:
VAR_POP(expr)

Returns the population stan...
https://mariadb.com/kb/en/var_pop/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 8
8 VARIANCE 16 Syntax:
VARIANCE(expr)

Returns the population sta...
https://mariadb.com/kb/en/variance/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 257
257 VARCHAR 22 [NATIONAL] VARCHAR(M) [CHARACTER SET charset_name]... https://mariadb.com/kb/en/varchar/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 303
303 VARBINARY 22 VARBINARY(M)

The VARBINARY type is similar to the...
https://mariadb.com/kb/en/varbinary/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 341
341 VALUES 14 Syntax:
VALUES(col_name)

In an INSERT ... ON DUPL...
MariaDB> INSERT INTO table (a,b,c) VALUES (1,2,3),...
https://mariadb.com/kb/en/values/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 412
412 UUID_SHORT 14 Syntax:
UUID_SHORT()

Returns a "short" universal ...
MariaDB> SELECT UUID_SHORT();
        -> 923957838...
https://mariadb.com/kb/en/uuid_short/
编辑 编辑 复制 复制 删除 删除
DELETE FROM help_topic WHERE `help_topic`.`help_topic_id` = 44
44 UUID 14 Syntax:
UUID()

Returns a Universal Unique Identif...
MariaDB> SELECT UUID();
        -> '6ccd780c-baba-...
https://mariadb.com/kb/en/uuid/
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