characteristic:LANGUAGESQL|[NOT]DETERMINISTIC|{CONTAINSSQL|NOSQL|READSSQLDATA|MODIFIESSQLDATA}|SQLSECURITY{DEFINER|INVOKER}|COMMENT'string'routine_body:ValidSQLprocedure statement or statements (1)LANGUAGE SQL :说明routine_body部分是由SQL语句组成的,当前系统支持的语言为SQL,SQL是LANGUAGE特性的唯一值 (2)[...
DELIMITER//CREATEDEFINER=`root`@`localhost`PROCEDURE`insert_table_s2`(INmin_numINT(10),INmax_numINT(10))BEGINDECLAREiINTDEFAULT0;SETautocommit=0;REPEATSETi=i+1;INSERTINTOs2VALUES((min_num+i),rand_string2(6),(min_num+30*i+5),rand_string2(6),rand_string2(10),rand_string2(5),rand_...
CHAR_ LENGTH(String) 该函数返回给定字符串的字符长度。这个函数与CHARACTER_ LENGTH( ) 函数是同义词。多字节字符被认为是一个字符。如果你要计算每一个字节, 请使用LENGTH( )函数。 CHARACTER_ LENGTH( ) 本函数返回给定字符串的字符长度。多字节字符被认为是一个字符。该函数与CHAR_ LENGTH( )函数是同义词。
ins_sum Event: INSERT Table: account Statement: SET @sum = @sum + NEW.amount Timing: BEFORE Created: NULL sql_mode: Definer: myname@localhost character_set_client: latin1 collation_connection: latin1_swedish_ci Database Collation: latin1_swedish_ci 1. 2. 3. 4. 5. 6. 7. 8. 9...
用户信息和 url String url = "jdbc:mysql://localhost:3306/jdbcstudy?useUnicode=true&characterEncoding=utf8&useSSL=true"; // 字符编码 字符集 useSSL安全 String username = "root"; String password = "123456"; // 3. 连接成功,数据库对象 connection 代表数据库 Connection connection = DriverManager....
(merchantId); List<SkuShopSearchPO> skuShopSearchPOList = new ArrayList<>(SHOP_GOODS_PACKAGE_NUMBER); SearchHits g = hit.getInnerHits().get(SHOP_INNER_HIT_RESULT_ALIAS); SearchHit[] innerHits = g.getHits(); for (SearchHit innerHit : innerHits) { Map<String, Object> source = inner...
The IN BOOLEAN MODE modifier specifies a boolean search. For more information, see Section 12.9.2, “Boolean Full-Text Searches”. A query expansion search is a modification of a natural language search. The search string is used to perform a natural language search. Then words from the ...
set_result_character_set() : Protocol_classic set_result_collation_id() : dd::Function, dd::Function_impl set_result_data_type() : dd::Function, dd::Function_impl set_result_data_type_null() : dd::Function, dd::Function_impl set_result_data_type_utf8() : dd::Function, dd::Funct...
10 /* retrieve the first character in the string */ 11 dbms_output.put_line ( SUBSTR (greetings, 1, 1)); 12 13 /* retrieve the last character in the string */ 14 dbms_output.put_line ( SUBSTR (greetings, -1, 1)); 15
Devart -- do a EXPLAIN EXTENDED on both of them, then do SHOW WARNINGS \G I'll bet you get identical answers. (OK, maybe JOIN is more 'right' than "comma join".) Sorry, you can't reply to this topic. It has been closed. ...