MSSQL CTE ??? MySQL? ??
?? ??? ???(CTE)? Microsoft SQL Server? ?? ??? ?? ??? ?????. ??? MySQL? CTE? ???? ???? CTE ?? ??? MySQL? ??? ? ??? ?????.
??? ??? CTE ??? ??? ???? ???? ???? ?? ???? ??? ???? ? ?????. ???? ID. MySQL?? ? ??? ????? ?? ?? ????? ???? ???.
?? ?? ???? ??
?? MySQL ?? ????? MSSQL CTE? ??? ????????. :
CREATE PROCEDURE get_category_tree(IN start_category_id INT)
BEGIN
DECLARE done INT DEFAULT 0;
DECLARE id INT;
DECLARE pid INT;
DECLARE name VARCHAR(255);
# Initialize the cursor
DECLARE cursor_categories CURSOR FOR
SELECT id, parentid, name
FROM category
WHERE id = start_category_id;
# Open the cursor
OPEN cursor_categories;
# Fetch the first row
FETCH cursor_categories INTO id, pid, name;
# While there are more rows
WHILE done = 0 DO
# Print the current row
SELECT id, pid, name;
# If the parent ID is NULL, mark as done
IF pid IS NULL THEN
SET done = 1;
ELSE
# Move the cursor to the parent row
SET start_category_id = pid;
FETCH cursor_categories INTO id, pid, name;
END IF;
END WHILE;
# Close the cursor
CLOSE cursor_categories;
END PROCEDURE;
???
?? ????? ????? ??? ?? ?? ID? ??? ???? ?????.
CALL get_category_tree(197);
??? ?? ???? 197?? ???? ??? ??? ??? ?? ??? ?? ???? ???? ??? ?????.
? ??? MSSQL CTE ?? ?? ?? ??? MySQL? ???????? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
? AI ??
Undress AI Tool
??? ???? ??
Undresser.AI Undress
???? ?? ??? ??? ?? AI ?? ?
AI Clothes Remover
???? ?? ???? ??? AI ?????.
Clothoff.io
AI ? ???
Video Face Swap
??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!
?? ??
??? ??
???++7.3.1
???? ?? ?? ?? ???
SublimeText3 ??? ??
??? ??, ???? ?? ????.
???? 13.0.1 ???
??? PHP ?? ?? ??
???? CS6
??? ? ?? ??
SublimeText3 Mac ??
? ??? ?? ?? ?????(SublimeText3)
??? ??
8639
17
1786
16
1729
56
1581
29
1445
31
GTID (Global Transaction Identifier) ??? ???? ??? ??????
Jun 19, 2025 am 01:03 AM
GTID (Global Transaction Identifier)? ? ????? ?? ? ??? ???? MySQL ???????? ?? ? ?? ??? ???? ?????. 1. ?? ??? ????? ?? ?? ? ??? ???? ???? ???? ??? ????? ?? ? GTID? ???? ????? ??? ? ????. 2. ?? ?? ???? ???? ? ????? ? ???? ? ?? ??????? ??? ???? ?????. 3. ?? ?? ???? ??????. GTID?? ?? UUID ? ?? ??? ???? ??? ???? ??? ???? ? ???? ??? ???? ????. ? ? ?? ?? ??? MySQL ????? ???? ???? ???? ??? ???? ??? ???? ?? ??????.
MySQL ??? ?? ??? ???? ????? ??????
Jun 19, 2025 am 01:06 AM
MySQL ?? ????? ?? ???? ?? 4 ??? ?????. 1. ?? ?? : ????? ? ????? ????, ?? ?? ? ??? ??? ????? ???? ?? ???? ??? ???? ?? ??? ??? ?? ? ?? ????? ???? MHA, ???????? ?? ??? ??? ? ??? ??? ??? ? ????. 2. ? ?? ?????? ?????? : ??? ??? ?? ?? (Seconds_Behind_master), Binlog ??? ???, ???? ?? ??? ??? ?? ?? ??? ???? ?????? ???? ??? ?? ??? ?? ?? ?? ??? ??????. 3. Switch Topology : ?? ???? ?????? ??? ??? ?????? ???, ?? ???? ????? GTID? ????? VIP, DNS ?? ??? ??? ????????.
?? ?? ???? MySQL ??????? ???? ??? ??????
Jun 19, 2025 am 01:05 AM
MySQL ??????? ???? ??? ??? ????. 1. ?? ?? ??? ???? MySQL-U ??? ?? -P-H ??? ??? ????? ??? ??? ????? ???? ???????. 2. ??? ??????? ?? ?? ???? ?? MySQL-Uroot-PmyProject? ?? ?? ? ?????? ??? ?? ? ? ????. 3. ??? ?? 3306? ?? ?? MySQL-Uroot-P-H192.168.1.100-P3307? ?? ?? ??? ????? -p ?? ??? ???????. ?? ???? ??? ???? ?? ?? ? ? ????. ??? ???? ????, ??? ?? ?? ??? ??????. ?????? ?? ? ?? ??? ???? ?? Linux? MySQL-Client? ??? ? ????. ? ??? ???????
MySQL ? ????? ??? ??? ???? ??
Jul 01, 2025 am 01:39 AM
MySQL? ? ????? ??? ??? ????? ?? ?? ??? ?? ???????. 1. Windows ??? : MySQL ?? ?????? ? ??? ????? (?? ??? ????? C : \ programfiles \ mysql \ mysqlserverx.x \ bin), "? ???"→ "??"→ "Advanced System ??"→ "?? ??", "??? ??", MySQlb in wors in mysqlb in wors in mysqlb in world in that the the the the the seel worl ?? ????? ?? ???? MySQL? ??????-Version Versification; 2.Macos ? Linux ??? : Bash ??? ?? ~/.bashrc ?? ~/.bash_
MySQL? ???? ?? ??? ???? ?? ???? ?????
Jun 23, 2025 pm 03:05 PM
MySQL? ?? ???? ?? ??? ??? ? A??, ?? MVCC ? GAP ?? ??? ?? ??? ?? ? ?? ???? ??? ???? ???? ?? ?? ??? ????. ?? ?? ??? ??? ?? (??)? ????? ??? ??? ????? ?? ?? ??? ????? 1. ??? ??? (read committed)? ?? ? ???? ?? ? ??? ?? ? ??? ?? ? ?? ?? ?? ?? ? ? ????. ???, ??? ??? ????? ??? ??;
MySQL ????? ?? ??? ??????
Jun 20, 2025 am 01:06 AM
MySQL ????? ?? ??? ?? ?????? ????? ???? ???? ?????. ??, ???? ??? ???? ??? ????? ?????. ?? ?? ?? ?? ??? ?????. ?? ??, ?? ? ??? ?? ???? ??? ????? ??? ???? ??????. ??, ???? ????? ??????? ? ??? ???? ?? ??? ?? ? ? ????? ?? ?? ? ???? ?? ????? ?? ??? ??? ??? ?????. ??, ??? ?? ??? ?? ??? ???? ????, ??? ??, ?? ???? ?? ? ??? ??? ?????. MySQL? readuncommitted ? readcommi? ?????.
???? MySQL ?? ??? ????? ??? ??????
Jun 19, 2025 am 01:05 AM
INdexESINMYSQLIMPROVEQUERYPEEDBYENABLEABERDATARETRIVEAL.1. THEYREDUCEDASCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCANCEND, WHERREORORDERBANTROWESINTROWSES, ?? ?? ??? ???? ?????
MySQL Workbench? ?? ??? ??? ??????
Jun 26, 2025 am 05:23 AM
mysqlworkbench? ??? ?? ??? ?? ??? ?????. ?? ??? ?? ??? ?? ????. 1. Windows ???? %appdata %\ mysql \ workbench \ connections.xml? ????. 2. MacOS ???? ~/Library/ApplicationSupport/MySQL/Workbench/Connections.xml? ????. 3. ????? Linux ???? ~/.mysql/workbench/connections.xml ?? ~/.local/share/data/mysql/wor? ????.
