例如:mysql> CREATE TABLE t (a VARCHAR(8000), b VARCHAR(10000), -> c VARCHAR(10000), d VARCHAR(10000), e VARCHAR(10000), -> f VARCHAR(10000), g VARCHAR(10000)) ENGINE=InnoDB; ERROR 1118 (42000): Row size too large. The maximum row size for the used table type, not counting BL...
CHARACTER_MAXIMUM_LENGTH * 4 + IF(CHARACTER_MAXIMUM_LENGTH <= 255, 1, 2)) -- 对于字符串类型,假设UTF-8编码,实际长度需根据字符集确定 WHEN DATA_TYPE IN ('date', 'time') THEN 3 WHEN DATA_TYPE IN ('datetime', 'timestamp') THEN 5 + IFNULL(DATETIME_PRECISION, 0) WHEN DATA_TYPE =...
mysql_prepare_create_table /* sql/sql_table.cc:3474 */ --> mysql_create_frm /* sql/unireg.cc:107 */ --> pack_header /* sql/unireg.cc:733 */ 在pack_header中存在这部分代码: if (reclength > (ulong) file->max_record_length()) /* 右值为 65535 */ { my_error(ER_TOO_BIG_RO...
在pack_header中存在这部分代码:if (reclength > (ulong) file->max_record_length()) /* 右值为 65535 */{ my_error(ER_TOO_BIG_ROWSIZE, /* 这个就是上面的报错信息对应的状态值 */ MYF(0), static_cast(file->max_record_length())); DBUG_RETURN(1);} 重点在于reclength的值是否大于 65535。
Aliases for column names inCREATE VIEWstatements are checked against the maximum column length of 64 characters (not the maximum alias length of 256 characters). Identifiers are stored using Unicode (UTF-8). This applies to identifiers in table definitions that are stored in.frmfiles and to iden...
mysql_prepare_create_table /* sql/sql_table.cc:3474 */ --> mysql_create_frm /* sql/unireg.cc:107 */ --> pack_header /* sql/unireg.cc:733 */ 在pack_header中存在这部分代码: if (reclength > (ulong) file->max_record_length()) /* 右值为 65535 */ ...
1.mysql_prepare_create_table /* sql/sql_table.cc:3474 */ 2. 3. 在pack_header中存在这部分代码:1.if (reclength > (ulong) file->max_record_length()) /* 右值为 65535 */ 2.{ 3.my_error(ER_TOO_BIG_ROWSIZE, /* 这个就是上面的报错信息对应的状态值 */ 4.MYF(0), 5....
(rec_max_size>=page_rec_max){ib::error_or_warn(strict)<<"Cannot add field "<<field->name<<" in table "<<table->name<<" because after adding it, the row size is "<<rec_max_size<<" which is greater than maximum allowed"" size ("<<page_rec_max<<") for a record on index...
SQL> create table a...create table语句,执行会提示报错,指出表或视图中允许的列最大个数是1000, SQL> declare 2 query varchar2(20000) := 'create table...01792: maximum number of columns in a table or view is 1000 ORA-06512: at line 8 由此引申出来,如果Oracle不同版本,对表列数有不同的个...
If the pointer size is too small for an existing table, you can change the options withALTER TABLEto increase a table's maximum permissible size. SeeALTER TABLE Statement. ALTERTABLEtbl_nameMAX_ROWS=1000000000AVG_ROW_LENGTH=nnn; You have to specifyAVG_ROW_LENGTHonly for tables withBLOBorTEXT...