Examples with SQLSelectQueryBlock com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock used on opensource projects

Example 31 with SQLSelectQueryBlock

use of com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock in project druid by alibaba.

the class DruidDataSource method oracleValidationQueryCheck.

private void oracleValidationQueryCheck() {
    if (validationQuery == null) {
        return;
    }
    if (validationQuery.length() == 0) {
        return;
    }
    SQLStatementParser sqlStmtParser = SQLParserUtils.createSQLStatementParser(validationQuery, this.dbType);
    List<SQLStatement> stmtList = sqlStmtParser.parseStatementList();
    if (stmtList.size() != 1) {
        return;
    }
    SQLStatement stmt = stmtList.get(0);
    if (!(stmt instanceof SQLSelectStatement)) {
        return;
    }
    SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
    if (query instanceof SQLSelectQueryBlock) {
        if (((SQLSelectQueryBlock) query).getFrom() == null) {
            LOG.error("invalid oracle validationQuery. " + validationQuery + ", may should be : " + validationQuery + " FROM DUAL");
        }
    }
}

Example 32 with SQLSelectQueryBlock

use of com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock in project druid by alibaba.

the class DruidDataSource method db2ValidationQueryCheck.

private void db2ValidationQueryCheck() {
    if (validationQuery == null) {
        return;
    }
    if (validationQuery.length() == 0) {
        return;
    }
    SQLStatementParser sqlStmtParser = SQLParserUtils.createSQLStatementParser(validationQuery, this.dbType);
    List<SQLStatement> stmtList = sqlStmtParser.parseStatementList();
    if (stmtList.size() != 1) {
        return;
    }
    SQLStatement stmt = stmtList.get(0);
    if (!(stmt instanceof SQLSelectStatement)) {
        return;
    }
    SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
    if (query instanceof SQLSelectQueryBlock) {
        if (((SQLSelectQueryBlock) query).getFrom() == null) {
            LOG.error("invalid db2 validationQuery. " + validationQuery + ", may should be : " + validationQuery + " FROM SYSDUMMY");
        }
    }
}

Example 33 with SQLSelectQueryBlock

use of com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock in project druid by alibaba.

the class SQLASTVisitorAdapterTest method test_adapter.

public void test_adapter() throws Exception {
    SQLASTVisitorAdapter adapter = new SQLASTVisitorAdapter();
    new SQLBinaryOpExpr().accept(adapter);
    new SQLInListExpr().accept(adapter);
    new SQLSelectQueryBlock().accept(adapter);
    new SQLDropTableStatement().accept(adapter);
    new SQLCreateTableStatement().accept(adapter);
    new SQLDeleteStatement().accept(adapter);
    new SQLCurrentOfCursorExpr().accept(adapter);
    new SQLInsertStatement().accept(adapter);
    new SQLUpdateStatement().accept(adapter);
    new SQLNotNullConstraint().accept(adapter);
    new SQLMethodInvokeExpr().accept(adapter);
    new SQLCallStatement().accept(adapter);
    new SQLSomeExpr().accept(adapter);
    new SQLAnyExpr().accept(adapter);
    new SQLAllExpr().accept(adapter);
    new SQLDefaultExpr().accept(adapter);
    new SQLCommentStatement().accept(adapter);
    new SQLDropViewStatement().accept(adapter);
    new SQLSavePointStatement().accept(adapter);
    new SQLReleaseSavePointStatement().accept(adapter);
    new SQLCreateDatabaseStatement().accept(adapter);
    new SQLAlterTableDropIndex().accept(adapter);
    new SQLOver().accept(adapter);
    new SQLWithSubqueryClause().accept(adapter);
    new SQLAlterTableAlterColumn().accept(adapter);
    new SQLAlterTableStatement().accept(adapter);
    new SQLAlterTableDisableConstraint().accept(adapter);
    new SQLAlterTableEnableConstraint().accept(adapter);
    new SQLColumnCheck().accept(adapter);
    new SQLExprHint().accept(adapter);
    new SQLAlterTableDropConstraint().accept(adapter);
}